When we watched the Miracle of Life video, I asked you to pay attention to the relationship between the structures of the human reproductive systems (male and female) and their functions.
This week, I want you to describe 5 of those relationships. How is the shape of the structure help with fulfilling its function? How does its location help?
I expect your whole response to be about 1 page. As usual, you will post your response by Friday and then post 3 comments by next Monday.
I look forward to reading your work (as always).
67 responses so far ↓
1
Hero Kid
// Mar 20, 2007 at 3:42 pm
Male and female reproductive systems help each other through reproduction.
Like at the very end of human reproduction, the gametes of the male and female meet each other in the female reproductive system and create the new individual (the sperm for the male and the ovum for the female).
Also the female needs the male to fertilize her egg with the sperms he produces from his reproductive system, even though the female carries the offspring through pregnancy and childbirth. Also, when the male and female are having there…….thing, they pass each other their own genes which gets passed on to their offspring and the genes are produce by their reproductive systems.
The penis and vagina also have a relationship. The woman creates a liquid that goes into the vagina so that the mans penis won’t have any trouble going in to let out the sperms to make a zygote.
One last relationship I can think off (this is really wierd talking about stuuf like penis and vagina ok I said to much) is when the sperm is done fertilizing the egg making it a zygote, the ovary is ready to launch it to the uterus, starting pregnancy.
Now if you see that the male and female reproductive systems have alot of relationships with there sex organs.
:’(
2
eyesticker03
// Mar 20, 2007 at 4:53 pm
Reproductive Structures and Relationships
March 20, 2007
When watching ‘The Miracle of Life’ video I took notes on the relationships of reproductive structures and the functions of them. Some reproductive structures I took notes on were the ovaries (1). The ovaries are in the general shape of an oval; their function is to produce eggs. The ovaries are found in the female reproductive system along with the fallopian tubes (2). The fallopian tubes attach to the ovaries and every twenty-eight days of the menstrual cycle an egg is dropped from the ovaries to wait in the fallopian tubes. If the egg is fertilized by the male’s sperm it will then develop into an embryo inside the uterus (3). The uterus can also be described as the mother’s womb.
Other structures, from the male reproductive system, are the testicles (4). The testicles produce sperm and each testis allows a place where the sperm mature. To produce sperm the testicles must be generally 7 degrees lower than the normal body temperature. During sexual intercourse the male’s penis distributes sperm to the vagina and the sperm leave the male’s body via the urethra (5). The urethra is a tube inside the man’s penis which is also where urine leaves the body as well. During copulation, when the penis is erect, urine is not able to leave the male’s body, instead only semen may leave through the urethra.
3
Maniac Leprechaun
// Mar 20, 2007 at 8:54 pm
This comment is for Hero Kid
I totally understand your discomfort with all those phrases. But you still did a great job, and I think you described all of your elements very well. Next time, maybe make it a wee bit longer.
4
Maniac Leprechaun
// Mar 20, 2007 at 8:55 pm
woops, wrong class
5
brown eyed girl
// Mar 21, 2007 at 4:56 pm
Reproductive Organs and Relationships
March 21, 2007
The “Miracle of Life” video was different than I had expected. It was jam packed with facts about reproductive organs and their structures. The organs are all shaped in weird ways, and the miracle of life video showed us that they are shaped that way for specific reasons.
The first organ that I learned has a specific structure for their function are the testicles. They are located outside of the body, which is cooler than it is on the inside of the body. They need this cooler temperature in order to produce semen.
Another organ is the uterus. The uterus has three muscle layers. The uterus is where a baby develops. The muscles in the uterus help push the baby out of the woman’s uterus and out the vagina.
Another organ is the fallopian tube. The fallopian tube has a layer of smooth muscle so it can move the egg. It also has cilia to help move the egg.
The third organ is the epididymis is a tube that moves sperm towards the penis. It has muscle contractions to bring the semen towards the penis during sexual intercourse.
The fourth organ is the vagina. The vagina is a muscular tube that receives sperm during sexual intercourse. The vagina can expand so it can give birth to a baby.
The fifth and last organ I will talk about is the ovary. Ovaries produce estrogen. If the ovaries, or any reproductive organ, didn’t work then there would be no baby.
6
polaroid gangsta
// Mar 22, 2007 at 3:17 pm
During the movie, there were many facts about the different organs involved with reproduction, fertilization, and development. The organs structures often help the organ with it’s function.
1. The scrotum keeps the testes at a temperature about 7 degrees lower than regular. This is important because it it wasn’t 7 degrees lower than the normal body temperature, the sperm could not be produced.
2. The penis and vagina are shaped in a way that helps their function. They are shaped in a way that they can connect with each other during sexual intercourse. The penis is shaped so that it can go into the vagina.
3. The fallopian tube has scilia which help move the egg through and out of the fallopian tube.
4. The egg has a protective outer layer so only one sperm can fertilize it.
5. When the penis is erect, the a barrier is formed blocking urine from coming out through the urethra, instead, only can semen can leave, which is convenient during sexual intercourse.
7
iheartj&js
// Mar 22, 2007 at 3:36 pm
Both males and females each have structures in them that help make reproduction a lot easier. These structures are very frequently linked to the functions that they have.
The “Miracle of Life” video helped me understand this much better.
Uterus (female)
The uterus is the structure in which the baby grows and develops before birth. The uterus stretches while the baby grows inside the womb. This helps the fetus stay more secure. If sperm does not reach the uterus, the lining of the uterus is shed and leaves the body, along with blood. This is called the menstrual cycle.
Fallopian Tube (female)
The fallopian tube is where the eggs pass through when they leave the ovary, and are headed for the uterus. The fallopian tube is lined with millions of tiny cilia, which sway and help push the egg along the tube. This is a very long voyage that can take about 5 days.
Testes (male)
The testes are two golf-ball sized structures which produce sperm. Nurse cells, which are inside the testes protect and nurture the sperm cells while they are still in the testes. The testes hang lower than the rest of the body, so that they will be cooler. Sperm cells needs to be at a certain temperature, or else they will die. They are contained in a sack called the scrotum.
Sperm (male)
Sperm is produced inside the testes and is necessary to successfully create offspring. The sperm fertilizes the egg. When they are done growing, sperms develop a layering over their head and a tail. The tails help sperm navigate their way to the egg. The layering over their head is so that when they try to break through the layers of protection in the egg, the DNA will remain unharmed. Sperm have one goal, to get to the egg and mix together their genetic information.
Urethra (male)
The urethra is the tube that connects the testes to the penis. It lets sperm leave during ejaculation. One function that the urethra has is that during ejaculation, it will not let urine leave the penis, only semen.
8
bmw x5 girl
// Mar 22, 2007 at 4:08 pm
We watched the movie “The Miracle of Life”. While watching the movie I found out why the body shapes are shaped that way. The fallopian tube which is found in the female is where the egg goes through. It is shaped so that the egg can get thorugh it with out having trouble. the uterus is where the baby grows and develpoes. It is also where the sperm has to travel to get the egg fertilized where it turns into a zygote. The vagina is shaped in a way that makes it possible for the sperm from the penis to go into the right tube.
9
brooklynmavis22
// Mar 22, 2007 at 4:39 pm
The way male and female reproductive systems are structured makes the act of reproduction easy. The way that these organs are structured is relevant to the way they function.
Five different organs that depict this are:
1. Uterus: The uterus is the structure in which the fetus grows and develops. The uterus stretches as the baby grows, which makes the developmental process possible. Also, the uterus is a contained environment in which everything that is needed for the fetus is available, such as nourishment and oxygen.
2. Fallopian tube: The fallopian tube is the structure the eggs pass through when they leave the ovary and go to the uterus. The fallopian tube is lined with millions of tiny cilia, which sway and help push the egg along the tube to make their journey to the uterus possible.
3. Sperm: The sperm is what is needed to fertilize the egg. When the sperm is fully mature, they are equipped with a tail, which helps them swim through the female to get to its destined point-the egg. Also, they develop a laying over their head and tail, so they can break through the protective layers of the egg, if they are able to get there, and the DNA contained in the egg will remain unharmed.
4. Egg: The egg has many protective layers over it. As a result, only one sperm can pass through the egg in order to fertilize it.
5. Scrotum: The scrotum is what contains sperm. It is about seven degrees lower in temperature than the rest of the body. If it was not seven degrees colder than the rest of the body, the sperm would not be able to be produced and survive
10
a is for awesome
// Mar 22, 2007 at 4:39 pm
There are many different parts of the male and female reproductive systems. They all do very different things, but they are all needed, and important. One important part in the male reproductive system is the testes. The testes are very important because they produce sperm, and without the sperm the egg could not become fertilized. The testes are inside of a sack called the scrotum. The scrotum is another very important part of the male reproductive system. It holds the testes, but also keeps them at a cooler temperature than the rest of the body. The testes need to be kept at a cooler temperature to produce sperm and without the scrotum, they couldn’t. One more important part of the male reproductive system is the urethra. The urethra is the tube where urine comes through. Also, during ejaculation, the urethra allows the sperm to flow through. The fallopian tube is a very important part of the female reproductive system. During the menstrual cycle, one egg drops down and travels through the fallopian tube which takes it to the uterus where it will either meet up with sperm and become fertilized or disintegrate in a case where there is no sperm. Without the fallopian tube, the egg could never get to the uterus. The uterus is a very important part of the female reproductive system too. The uterus is where the egg goes to meet up with the sperm. When the egg is fertilized the embryo forms in the uterus and develops there. Then, when the baby is being born, the uterus’ muscles help push the baby out of the mother. So if there was no uterus, the baby couldn’t be born.
11
brooklynmavis22
// Mar 22, 2007 at 4:43 pm
*Correction
3. Sperm: The sperm is what is needed to fertilize the egg. When the sperm is fully mature, they are equipped with a tail, which helps them swim through the female to get to its destined point-the egg. Also, they develop a *layering over their head and tail, so they can break through the protective layers of the egg, if they are able to get there, and the DNA contained in the egg will remain unharmed.
12
rosie13
// Mar 22, 2007 at 5:14 pm
The male and female reproductive systems are built for one purpose alone: to fertilize the egg. So, there are structural aspects of both systems that make it easier for each system to do its job.
1. Scrotum [male]. The scrotum is the layer of skin that surrounds the testes. Sperm is produced inside the testes, and they have to be kept a few degrees cooler than average body temperature to be produced. The scrotum allows the testesto be kept outside of the body, which allows for sperm prodution.
2. Testes [male]. The testes are the two structures that produce sperm. Inside the testes, there are very long amounts of tube that the sperm travels through, on their journey to maturity. There are nurse cells inside the testes, which protect the sperm while it is still maturing. The testes are kept outside of the body because of temperature reasons [see 1].
3. Fallopian tube [female]. The fallopian tube is the tube that connects the ovary with the uterus. When the egg drops from the ovary, it travels through the fallopian tube. The fallopian tube is lined with millions of cilia, which gently aid the egg in it’s journey down the fallopian tube to the uterus, where it will meet the sperm [if any sperm is on its way...].
4. Urethra [male]. The urethra is a tube that connects the testes and the penis. Sperm and semen travel up the urethra during ejaculation. During ejaculation, the urethra will not let urine leave the penis, so only semen can enter the vagina [which is probably a good thing.]
5. Vagina [female]. The vagina is shaped in a way that makes it possible for the penis to enter in a way that will allow the sperm/semen to go up the fallopian tube in order to fertilize the egg.
13
Svogthir
// Mar 22, 2007 at 5:15 pm
There are several advantages to the structure of the human sexual organs that helps their function to be performed, for example:
1. The testes are made of long tubes coiled very tightly, which helps maximize the amount of sperm which can develop at one time.
2. The penis releases sperm as close to their destination as possible to better enable fertilization.
3. The vagina is very flexible and only opens into the uterus, so the sperm are able to start traveling toward the egg immediately and also the baby is able to pass through.
4. The fallopian tubes are coated with cilia to enable the egg to travel towards the uterus easily and quickly.
5. The sperm are equipped with relatively long tails and a tough coating an their heads, so they can reach the egg as fast and efficiently as possible, and so their chromosomes are protected well.
Man, this feels awkward to type…
14
Hero Kid
// Mar 22, 2007 at 5:49 pm
Comment for Svogthir-
You made alot of good points and I understood what you were saying. Also, this isn’t awkward, it’s……well yay your right,is awkward.
15
mr.coolguy
// Mar 22, 2007 at 7:40 pm
Svogthir:
I agree with Hero Kid, it is a little awkward. But getting down to the real comment. I don’t remember the vagina being flexible. I most have been taking notes at that time and missed it. You did a good job!
16
kenny24
// Mar 22, 2007 at 7:41 pm
Miracle of Life
Most of the structures involved in sexual reproduction have a special characteristics to help them with their functions. The miracle of life video had lots of useful information. I learned that the shape of a structure can actually help the function of the structure. Some of the structures I learned about were the urethra, fallopian tube, testis, scrotum, and the sperm.
Urethra- The urethra is the tube that connects the testes to the penis. The urethra stops urine from leaving the penis during ejaculation. There are also little holes all through out the urethra that send a liquid into the urethra for the sperm to swim in. Sperm mixed with liquid is called semen
Fallopian tube- This tube is what the egg travels down once it leaves the ovaries. Within the tube there are millions of little fibers called cilia that line the fallopian tube. These fibers sway back in fourth to move the egg down the tube. These fibers are very gentle or else they could ruin the egg. The journey the egg makes down the tube takes about five days.
Testis- Testis are the size of golf balls and they produce sperm. They are held below the body by the scrotum. Nurse cells are inside the testis and they protect the sperm. The job of the nurse cell is to defend and nourish the sperm while it is still in the testis. Sperm is needed for sexual reproduction.
Sperm- Sperm is the male sex cell. It is created in the testis and its one job is to fertilize the egg. Once they are fully grown they develop a layer over their heads to protect the DNA. They also form a tail to help them swim and navigate their way to the egg. When sperm starts breaking through the layers around the egg the layers on their head start peeling off. When it gets to the egg the DNA is bare and is ready to go into the egg. Sperm can actually be harmed by things in the environment such as radiation, pollution and even tight jeans.
Scrotum- the scrotum is the skin that holds the testis below the body. Testis need to be held below the body because for sperm to properly reproduce within the testis the testis need to be a few degrees below normal body temperature. If the testis were not cooler than the rest of the body the sperm would die.
17
mr.coolguy
// Mar 22, 2007 at 7:41 pm
Miracle of Life Assignment
As the movie showed, there are many things to the human reproduction system, some good, some bad. Here is a list of five organelles of the reproduction system and what makes them well suited for their task(s).
1.Scrotum. The scrotum is the sac in the male reproductive system that holds the testicles (among other things). The scrotum is separate from the rest of the body. That is because, to produce sperm, the temperature has to be around 7 degrees below the normal body temperature. The scrotum keeps the testicles away from the body so it can stay cool. A man might make defective sperm if he is wearing pants that are too tight and that are pressing his testicles to his body.
2. Sperm. The sperm is the male gamete. It has to go from the man to the womans vagina. It can do this because it has a tail. The tail is for swimming purposes only. The sperm has to swim all the way from the penis to the egg. Once the sperm germinates the egg, its tail falls off. Because of its need for a lower temperature, it is made in the scrotum (described above. The top of the sperm called the head which contains all the genetic information.
3.Fallopian Tube. The fallopian tube is what the egg travels through to the uterus. The fallopian tube picks up the egg with fringes on the outside of the tube that are triggered by hormones. In the tube, the egg is pushed on by the cilia that are inside the tube. The egg wouldn’t be able to move if it weren’t for the cilia. Unlike the sperm, the egg doesn’t have a tail or other means of transport.
4. Urethra. The urethra is the tube that connects the testicles to the penis. The sperm/semen travel through this tube during ejaculation. During ejaculation, the urethra will only let out semen/sperm, not urine (urine travels through the urethra as well).
5. Egg. The egg is the female gamete. It has the womans genetic information. The egg has many defensive layers so almost nothing can get into it (except sperm). The cool thing about the egg is that once one sperm cell enters it, something changes in the outer part of the egg and no more sperm cells are allowed in. Once that one sperm cell comes in, the two cells start to fuse to become a zygote.
Note, I wrote this whole thing without laughing : )
18
kenny24
// Mar 22, 2007 at 7:42 pm
to iheartj&js
your report was very good. i liked the way you organized it. VERY NICE
19
kenny24
// Mar 22, 2007 at 7:44 pm
to polaroid gangsta
i liked the structures you picked. good choices
20
mr.coolguy
// Mar 22, 2007 at 7:44 pm
kenny24:
You made me remember that I didn’t put in my report that the urethra lets semen in. Mr Ardito, if you are reading this (if you are allowed to), can you please pretend I put this in. (if not, I will suffer the consequences). Anyway, you did a great report!
21
kenny24
// Mar 22, 2007 at 7:45 pm
to eyesticker03
i liked how u talked about the shape of the structure as well as the function.
22
mr.coolguy
// Mar 22, 2007 at 7:48 pm
bmw x5 girl:
I disagree (though this is my own opinion) that the vagina is shaped well for the sperm. During the process when the sperm goes from the penis to the egg, the sperm count goes from two million to 50 (50!). But partly, it is because the sperm are a little stupid (like they try to germinate the first thing they see).
23
Hungry Man
// Mar 22, 2007 at 8:03 pm
Reproductive Structures
In the “Miracle of Life” video we had to take note on five structures of the male or female reproductive system. The five that I got were: Uterus, Penis, Sperm, and Fallopian tube
1: The Fallopian tube carries the egg and protects it down into the uterus where the baby can be developed. It is a long tube that goes down from the ovary to the uterus. The tube is fit for the egg to go through. It is in the Female reproductive system.
2: The Scrotum is the sack where the sperm is held. The temperature in the scrotum is 7 degrees lower than the normal body temperature. It is at that temperature so the sperm can produce and live. It is in the Male reproductive system.
3: The Uterus is where the egg is developed. It protects the soon to be baby which is called a fetus. It lets in air for the fetus to survive. It is in the Female reproductive system.
4: The Penis lets the urine and sperm out. The sperm can go into the female and travel to the egg. There are millions of sperm trying to get to the egg. It goes into the vagina and then releases the sperm inside. It is in the Male reproductive system.
5: The Sperm is produced in the testes where it is 7 degrees lower than normal body temperature. All of the genetic information is inside of the sperms head. The sperm loses its tail when it is inside of the egg. The sperm has a head, neck, middle piece, and a tail. It is inside of the Male reproductive system.
Those are the five structures that I had notes in my notebook from the video.
24
acex2inurface
// Mar 22, 2007 at 8:06 pm
From the “Miracles of Life” video, I learned that there are a lot of body parts that is involved to helps make a new life. Each body part takes care of one or two functions and passes it along to the next body part, so it is basically like an assembly line. Both female reproductive system and male reproductive system has very important body parts that helps create a new life. If one part gets damaged, the whole cycle on making a new life does not happen. Here are some important body parts:
Fallopian Tube: The fallopian tube is located in the female reproductive system. The fallopian tube leads the egg out from the ovary to the uterus. The fallopian tube has millions of cilia to brush the egg forward.
Ovary: The ovary is in the female reproductive system. This is where the egg is made and is let out to the fallopian tube. The ovary is the gonad in the female reproductive system
Uterus: The uterus is located in the female reproductive system. This is where the new life forms inside the womb. The baby grows and develops inside the uterus and the uterus grows with it.
Testes: The testes are located in the male reproductive system. This is where they make millions of sperms. The sperms need to be in a low temperature in the testes. The testes are in a sac called scrotum.
Urethra: The urethra is located in the male reproductive system (there is also one in the female reproductive system). The urethra connects the testes and out to the penis. The urethra only lets the sperm out during ejaculation, not the urine.
25
Svogthir
// Mar 23, 2007 at 4:38 pm
mr. coolguy:
you ddid a good report, although whether or not you laughed doesnt make a difference, it could still be kind of awkward. also, follow-up on your comment to me, the vagina would need to be flexible for the baby to fit through it.
26
Svogthir
// Mar 23, 2007 at 4:40 pm
A is for awesome:
i like that you used a lot of the structures in your report that most people didn’t, like the uterus. also, i noticed that you didnt write a report nearly as long a yours usually are this week, but you did write a good one.
27
rosie13
// Mar 25, 2007 at 10:22 am
This comment is for Hero Kid
You did a good job talking about the relationships [even if you felt uncomfortable, haha].
28
rosie13
// Mar 25, 2007 at 10:39 am
brooklynmavis22
Your responce was very proffessional. Good job.
Oh and I especially like how you referred to it as “the art of reproduction.” Teehee.
29
rosie13
// Mar 25, 2007 at 10:42 am
acex2inurface:
I like how you had a really detailed introduction as well as a detailed um… description of the… parts. Well, that was awkward… But you did a good job.
30
brown eyed girl
// Mar 25, 2007 at 1:42 pm
This comment is for mr.coolguy
I really liked how you layed everything out neatly, it made it much eaiser to read and you had a lot of info on each part.
31
brown eyed girl
// Mar 25, 2007 at 1:45 pm
this comment is for rosie13
I really like how you wrote if the parts were male or female. You did a good job doing discriptions of the parts.
32
brown eyed girl
// Mar 25, 2007 at 1:53 pm
This comment is for kenny24
You did a really good job explaining each part. But is a sperm really considered a male reproductive structure?
33
opac1
// Mar 25, 2007 at 3:47 pm
The organs of the human body are located where they are in order to perform their functions as efficiently as possible. They are also shaped the way they are in order to perform their functions as efficiently as possible. This applies to both the male and female reproductive systems as much as any other organ system in the human body.
For starters, there is the scrotum in the male reproductive system. Its function is to hold the testes so that they can produce sperm, and both its location and shape are very vital to performing that function as efficiently as possible. The shape of the scrotum is like a sack that holds the testes, and this helps because it is not too tight. Since it is not too tight, the temperature of the testes is not too hot, so are able to produce sperm. That is why the location is so important. The scrotum is located away from the main part of the body because sperm needs to be produced at a lower temperature than actual body temperature. By being located where it is, sperm is able to be produced at the right temperature.
Another organ would be the fallopian tube in the female reproductive system. Its function is to transport the egg to the uterus. Its location enables the fallopian tube to do that because one opening of the tube is located near the ovary, and the other is located near the uterus. The shape of the fallopian tube is also functional because there are cilia located on the inner walls of it that pushes the egg from the ovary to the uterus. In addition to that, it is nit that long. That enables the egg to reach the uterus more quickly than if it was longer.
Yet another organ would be the penis in the male reproductive system. Its function is to deliver semen to the female. It is able to do that efficiently because there are blood vessels in it that make become erect when the male feels sexual. This shape enables the delivery of semen to be significantly more efficient. Its location is also helpful because it is located close to the testes, so when sperm make the journey from the testes to the penis, they are less likely to die.
Another organ would be the vagina in the female reproductive system. Its function is intake semen. Its shape allows it to do that because it is a hole that the penis can fit in to. Also, it is located close to the egg, so that the sperm does not have to travel as far to fertilize it. In addition to that, the vagina is very acidic, so that bacteria and such do not infect it. It also is the location where the fully developed offspring leaves the female’s body.
The last organs are the testes in the male reproductive system. The function of the testes is to produce sperm. Now, sperm needs to be produced at a lower temperature than body temperature, as I previously mentioned. That is why being located in the scrotum helps because the scrotum is just the right temperature for sperm production. The testes would actually be very long if they were stretched out, but they are coiled up. In the little cracks of that coil lie the sperm that has been produced. They are protected by “nurse cells” because the immune system of a male sees sperm as enemies.
With all I have just stated, it is very obvious that location and shape are very significant factors in both the male and female reproductive organs.
34
opac1
// Mar 25, 2007 at 3:52 pm
Hungry Man:
You were very straight forward in your report. You were also very factual. In my opinion, you should have made it a little longer. Regardless, your report was still good.
35
opac1
// Mar 25, 2007 at 3:57 pm
Mr. Coolguy:
Your report was very detailed, and contained many facts. It appears that you put a lot of time and effort in to your report, and it paid off. Keep up the good work.
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opac1
// Mar 25, 2007 at 4:03 pm
Svothir:
Your report was factual, but could have been longer. I liked the way you planned it, though. It was very well organized. By the way, I know how you feel writing this. It is awkward.
37
HiMan
// Mar 25, 2007 at 5:58 pm
While watching the miracle of life video we were supposed to take notes on how the different structure of the male and female help in the process of reproduction. One very obvious way they help this process is the male and females reproductive organs shape. They are shaped the way they are so that sperm is delivered in the most efficient way. A second way is that the sperms shape gives it the maximum amount of speed. This is important for reproduction because the best time for an egg to be fertilized is within a two day period after ovulation so the sperm needs to be fast in order to get to the egg in time. A third way is that tiny cilia are on the walls of the fallopian tube and these cilia move the egg into the fallopian tube and out of it into the uterus. A fourth way is that the scrotum holds the testicle down and away from the rest of the body’s heat. It does this because the testicles need to be a few degrees cooler than the rest of the body for the testicles to efficiently produce sperm. The fifth and final way that these structures help in reproduction is that once the sperm gets into the vagina it immediately coagulates so that it is not destroyed by the vaginas acid.
38
dusty schmidt
// Mar 25, 2007 at 7:32 pm
Miracle of Life was a very intresting video, since it talked about how a human reproduction system worked. I really didn’t expect it to be what it was. For example, I learned that the males’ testicles produce sperm constantly, and that the temperature around the scrotum, the sack in which the testicles are held, can affect sperm production. I was also surprised in how fast a males’ penis will harden, and the tissues inside will start to be filled with blood, when a male is sexually excited. But I think that could be the most important part in reproducing because it wouldn’t work if that didn’t happen.
Anyway, during a females menstrual cycle, an egg will get ready for sperm to fertilize it, and if the egg doesn’t, all of the blood that builds up from breaking tissue will come out of the females vagina, a.k.a a females’ period. Once sperm enters the females’ body, it tries to make it’s way to an egg that’s waiting to be fertilize. The sperm have many obsticles, and only 1 out of the millions that enter will fertilize the egg. Once the sperm reaches the egg, it will start to fertilize. The sperm that don’t make it to the egg die, from the females’ t-cells that kill them, and some even try to fertilize the first thing they spot in the womans vagina. I think it would be a whole lot harder for the sperm if the egg wasn’t in the uterus for the sperm to fertilize. The egg gets to the uterus by going through to fallopian tube. I think the location of the females’ egg is the most important part of reproduction, beause it’s hard already for sperm to reach it, and it would even harder if the egg would stay in the ovary.
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dusty schmidt
// Mar 25, 2007 at 7:34 pm
This comment is for Hungary Man.
Your reflection was very straight forward, and you had really good facts. Good job, and you take very good notes
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dusty schmidt
// Mar 25, 2007 at 7:36 pm
This comment is for iheartj&js
Your reflection was very nice. I agree that the Miracle of Life video was a good sourrce for understanding reproduction in humans.
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dusty schmidt
// Mar 25, 2007 at 7:37 pm
This comment is for Himan
You talked about the menstrual cycle, and I had the same ideas of the sperm reaching the egg fast. Good job.
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dancingintherain102
// Mar 25, 2007 at 9:59 pm
The ovaries are shaped like ovals. They are shaped this way because many eggs need to respond to FSH every month to make enough estrogen so that LH is released and ovulation occurs. By being oval shaped, only 1 (and occassionally 2) eggs will actually reach the surface for ovulation. If the ovary was flat too many eggs would reach the surface every month and human beings would have many babies at the same time.
The uterus is shaped like an upside down pear. Most of the uterus is in the abdomen, with just the opening to it (the cervix) in the vagina. This gives the uterus a lot of room to expand and grow when a woman becomes pregnant. Every month the inner lining of the uterus respond to hormones like estrogen. The uterus makes a new lining in the first half of the month in case an egg is fertilized. Then the egg can attach and grow. If the egg is not fertilized the hormonal changes cause a woman to shed that months lining.
Fallopian Tubes have their tube-like shape to get the egg from the ovary to the uterus. It is in the fallopian tube that the egg gets fertilized by the sperm. By giving the egg time to travel to the uterus it allows more time for an egg to possibly get fertilize.
The testes are round to allow the most space for sperm to be produced. By being on the outside of body cavity the testes remain at a lower temperature. The testes produce sperm best at a slightly lower temperature than the inside of the body.
The vagina has an angled, elongated, (and somewhat round) shape. This shape allows the sperm to remain in the area closest to the opening of the uterus for the longest possible time. This increases the likelihood that more of the small percent of healthy sperm will get into and through the uterus, and then to the fallopian tube, and that fertilization will occur.
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dancingintherain102
// Mar 25, 2007 at 10:04 pm
This comment is for dusty schmidt.
I liked the way at the beiginning of your report talked specifically about the mirical of life video.
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dancingintherain102
// Mar 25, 2007 at 10:07 pm
This comment is for acex2inurface.
I really liked how you talked about the way that all of the different body systems have to work together. In order for the species to reproduce.
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dancingintherain102
// Mar 25, 2007 at 10:10 pm
This comment is for iheartj&js.
You gave a very good description of how each indidvidual part of the reproductive system works.
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HiMan
// Mar 26, 2007 at 6:46 pm
This comment is for bmw x5 girl:
I liked your report but I think you could’ve added more details and made it longer.
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HiMan
// Mar 26, 2007 at 6:52 pm
This comment is for brooklynmavis22:
I liked your report and I thought that you had a good amount of information for each example.
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HiMan
// Mar 26, 2007 at 6:57 pm
This comment is for dusty schmidt:
I liked your report but I found it a little bit difficult to understand what your five examples were. I figured it out in the end but in the future you might want to number the examples.
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room217
// Mar 26, 2007 at 7:13 pm
the feamale and the males reprodutive parts are shaped the way they are for a reason. They are not like that because they feel like it. For example the testicals in male are round shaped to hold the sperm. also to plie the most space to proudude the sperm. It is also hanging a few inches from the body becaousethe sperm need to stay a little bit cooler from mormal body temperature. the penis is tubed shaped becouase when a man and woman are doing their thing tomake a baby the peis grows long and it allows to inject sperm in the woomens bodyto find and fertilize the egg. the vagina is the part of the woman that catches the sprem.It is shaped the way it is becaouse it is easier for the sperm to go in. The ovaries are oval shaped.they are oval shaped becaouse the eggs need to respond tothe hormone FSH to each month to make estrogen so the hormone LH can be realsed to let ovulation occur.also the fallopian tube is tube shaped so that the egg can get from the ovary to the uterus.also the egg get fertilized in he fallopian tube while it is moving from th ovary to the uterus.
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Hungry Man
// Mar 26, 2007 at 7:21 pm
This comment is for kenny24:
I liked your notes on the Miracle of life video. You had a lot of information on the 5 structures that you knew about from the video. Great job.
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Hungry Man
// Mar 26, 2007 at 7:58 pm
This comment is for opac1:
Your reflection on the notes you took were good. It was long but had a lot of information on the structures you picked. You had all the information needed. Great job.
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Hungry Man
// Mar 26, 2007 at 8:02 pm
This comment is for iheartj&js:
I liked the way you did your format it is kind of like mine. You had lots of detailed information and factual information as well. Great job.
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brooklynmavis22
// Mar 27, 2007 at 7:07 pm
rosie 13:
I thought your response also sounded very professional. We’re medical people-we’re not afraid to say these words!
Also, I didn’t say the art of reproduction, I said the act.
Although if it was art…ahem.
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brooklynmavis22
// Mar 27, 2007 at 7:10 pm
opac1
I liked how you associated each organ to another. You had very informative descriptions.
Good job.
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n00b51ay3r
// Mar 27, 2007 at 8:20 pm
one part of the reproductive system is the vigina. its purpose it to recieve the semen given off by the, um, well, penis. it’s shaped like it is so the penis can easily be inserted in it and it can easily recieve the semen. also so that when it does recieve the semen, the semen is close to the egg. it is also the place where a fully developted baby will come out.
another part of the reproductive system is the scrotum. it is shaped like a sack so it can hold the testes without damaging them, which would NOT be good. the scrotum isn’t tight so the testes aren’t hot and can produce sperm at the perfect temperature.
the last part i will do is the penis. it is the shape it is so it can release seme into the vagina witkout a problem. it is also located near the testes, so when the semen travels to the penis, they are less likeky to die.
that was probably the strangest thing i ever wrote to a teacher in my life
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n00b51ay3r
// Mar 27, 2007 at 8:21 pm
in the penis paragraph, i wrote seme which is supposes to be semen
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n00b51ay3r
// Mar 27, 2007 at 8:22 pm
supposed*
(i think i’m too tired to be doing homework)
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bmw x5 girl
// Mar 27, 2007 at 9:18 pm
This is for opac1:
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bmw x5 girl
// Mar 27, 2007 at 9:20 pm
Sorry my computer randomly sent the begining in with out the rest. I was saying how opac1 did a really good job of making everyone else understand what they were saying.
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bmw x5 girl
// Mar 27, 2007 at 9:24 pm
This is for dancingnintherain102:
I liked the way you layed things out, my ideas were very similar to yours.
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bmw x5 girl
// Mar 27, 2007 at 9:27 pm
This is for dusty schmit:
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bmw x5 girl
// Mar 27, 2007 at 9:28 pm
This is for dusty schmit:
I like how you explained everything and not only listed the facts but why they happend or why you thought it was interesting.
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bmw x5 girl
// Mar 27, 2007 at 9:30 pm
This is for hero kid:
I liked how you were one of the only people to show a relationship between the male and female reproductive systems.
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eyesticker03
// Mar 28, 2007 at 5:21 pm
I was unable to access the blog over the weekend to write my comments so I am writing them now.
This comment is for kenny24
I really liked how you organized all of your information. Your report was well written, it was very interesting to read about.
This Comment is for iheartj&js:
The layout of your information was very interesting. It seemed that you understood everything you were writing.
This comment is for opac1:
You had a lot of information on each structure and the functions. It was interesting to read and I think you did a pretty good job.
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a is for awesome
// Apr 12, 2007 at 8:45 pm
This comment is for iheartj&js.
Your explanations of the reproductive parts were really good. It seems like you really know what you’re talking about and you really understand the topic.
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a is for awesome
// Apr 12, 2007 at 8:49 pm
This comment is for room217.
I liked how you wrote it. Most of the other ones that I read just explained what the parts of the male and female reproductive parts were and what their functions are. I like how you explained why the parts are shaped the way they are.
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a is for awesome
// Apr 12, 2007 at 8:55 pm
This comment is for dancingintherain102.
Wow, you had a lot of information in there. It looks like you really understand the topic well. Good job.
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