what is the primary function of sperm?
484366
The reproductive anatomy of the male human is largely external. The male gonads, called testes, hang in a sac of skin called the scrotum. The testes produce sperm, which, in humans, cannot survive long at body temperature. The penis is the erectile organ responsible for the transfer of sperm to the vagina of the female. Just before ejaculation, mature sperm travel from the epididymis, a coiled tube behind each testis, through a long duct called the vas deferens. Sperm leave the body in semen, a fluid produced by the seminal vesicles. The secretions of the prostate and Cowper’s glands provide additional nutrients for the sperm.\n\n\nAND THE OTHER INFORMATION ABOUT IT ARE AS BELOW.\n\n\nIn male vertebrates, the ducts are directly connected to the testes and include the epididymis, which lies attached to the testis and which transports sperm to the vas deferens. This carries the spermatozoa to the ejaculatory duct, which contracts to discharge sperm into the posterior urethra.\n\nIn most fishes, the ovary has a hollow expansion through which the ova pass into the cloaca. In most other vertebrates, however, no direct connection exists between the ovary and the oviducts that carry the ova into the cloaca or into the independent external opening. In mammals, when the Graafian follicle bursts, the egg falls towards the interior of the abdominal cavity. The oviduct (known in higher mammals as the Fallopian tube) has an open, funnel-shaped end located near the ovary, into which the mature egg is drawn by ciliary action. Occasionally, the egg misses the open end of the oviduct and falls into the abdominal cavity; such eggs are capable of being fertilized, resulting in ectopic pregnancies. In animals lower than marsupials the oviducts open directly into the cloaca; in marsupials and placental mammals, the oviducts, two of which are normally present, fuse at their cloacal ends to form a thick, muscular organ, the uterus or womb, in which the young develop, and a thinner channel, the vagina, which open to the exterior.\n\nFOR MORE INFORMATION YOU CAN CONTACT ME ON ad786_alcatel@yahoo.com or 0093799990020.\n\nThanks and Regards\n\nAssad.
702526
your testes are constantly craking out sperm.  The sperm are stored in the top of your testes to mature (grow)\n\nafter you ejaculate, the sperm is gone, but your testes will produce more.
1042229
Pls refer below link..\n\nhttp://kidshealth.org/parent/medical/body_basics/male_reproductive.html\n\nCheers!!!
524092
The testis increase the sperm production at temperatures lower than normal body temp: So keep them cool and increase period between intercourses.
470204
It searches for an egg to fertilize. It only takes one sperm, but thousands can enter your body. The ones that don't make it just come out when you pee.\n\nSorry smarts20, but you are wrong. The ovary releases an egg during ovulation and travels down the fallopian tubes into the uterus where it hopes to be fertilized and become implanted in the uterus. If the egg does not become fertilized you have your period.
277254
It has to do with the observation in nature that all living things maximize the opportunities to reproduce.  In order to have the highest liklihood of fertilizing an egg, many spermatazoa are produced.\n\nThe numbers are meant to overcome known enemies of reproduction, including non reproductive sexual activites, long periods of no sexual activity, environment of the vaginal canal is not the safest place for a spermatazoa and many are destroyed in the process and many are resorbed by the body before ever leaving.\n\nIt takes 72 days for a spermatazoan to be made, the process is ongoing and millions are made each day.\n\nThe whole purpose is to be ready when the time is right to fertilize and egg and maximize the ability to proagate the species.
800676
How do you know how much sperm you are producing?  Only a lab test can determine your sperm count.  If you are simply talking about increasing semen production, which carries the tiny bit of sperm, you do need to be healthy and eat healthy, exercise regularly and all that.  Unfortunately, there is not a lot to do to increase semen volume overall.  Recent studies do show that guys with large balls do produce more semen, probably a genetic breeding result.  If you have average size balls, you wil probably have an average load of semen.
920712
The male reproductive organ produces sperms (male gametes).These are short lived,temperature sensitive,acid sensitive.The body temp.(normal)is 37^c.The sperms get destroyed at this temp.They require temp. 2^c less than body temp for survival and normal functioning.Hence, testes are located outside the body.
996667
in our caveman days it served several purposes. first it helped to protect the genitals from dirt and other elements, in guys it would also help to keep the are warm. sperm need a certain temperature to stay alive, if it gets too cold they die. also the hair would help to hold the smell. gross nowadays but back then the smell was what people were attracted to, there's a lot of pheromones in sweat.
926388
Yes, some sperm escape.
1038266
The condom, assuming it's used correctly with no holes or tears, catches semen to prevent it from entering the vagina.  The spermicide is an added precaution.  It kills sperm that come into contact with it, so it further reduces the chance of pregnancy.  Remember, of course, that no contraceptive method is 100% effective.  The more precautions you take, the better.  Condoms are also the only method of contraception that has been proven to help prevent STDs.  Some people, however, have irritation from using spermicide.  If this happens to you or your partner, you can use condoms without spermicide.
326591
the sperm is the tadpole lookin things and the semen is the stuff that a guy ejaculates. Yes semen definatly gets you pregnant as does the sperm.
921897
Sperm life is dependant  on many variables.Generally sperm lives about three days,but it the sperm are in good\nquality cervical fluid they can live up to 5 days.Sperm that \nreach the optimal enviroment beyond  the female cervix\nmay live for 5 days.Sperm that stays only in the vaginalive only a few hours and even less if exposed to air\noutside the body.Sperm that carry  genetic info for female offspring swim  slower and live longer than the male  designated  sperm.
905573
Because it's males that produce the sperm\n\nNow a more interesting question is WHY IS THIS IN ASTRONOMY & SPACE?
352313
ok how basic you want it to be\n\nthe first part is definitely the fertilization (you know what it is but here is some detail) sperms are tiny cells they contain condensed DNA and as organelles they only have mitochondria and acrosome. acrosome is a tiny vesicle surrounded by actin filaments and its job is to degrade the zone pellucida in non mammals and the vitelline envelope in mammals. as the sperm contacts with the egg (there is a potential chemical attraction but nobody's sure what does this attraction)the sperm relases those digestive enzymes and works its way down to the cell membrane where it contacts some its receptors which are thought to be species specific and inserts its DNA. along with this insettion a whole lot of calcium ion fluctuations occur in the cell mainly with the work of PKA and the sacroplasmic reticulum. Both nuclei meet in the middle of the cell and fuse and we get to the second part. \n\nthe second part is definitely the most important time of your life called the blastula. I will use 3 organisms sea urchin, from (xenopus to be more precise) and mice. \n\nin sea urchin the process is simple after fertilization a whole fury of cell division starts. by the time there are 129 cells or so instead of having a mass of cell we have hollow ball of cells with whole lot of signaling molecules secreted inside. then this ball form a cavity with the movement called invagination (hence the name tells everything) and closes that gap. now we have 2 balls infued with one another and that is the blastula stage. \n\nin mice the process is quite similar to sea urchins with couple of differences such as the speed of division is way slower and mammals show rotational division (search for this i cannot expain with words you need images)\n\nin xenopus the stage of blastula is quite different in the sense that the egg yolk in bird and frogs and some fish are really dense so the division cannot be completed right away. imagine a sphere and the top part of this sphere is not as dense as the bottom part as divisions start after fertlization it goes pretty well at the top but slows significantly at the bottom. The top part is called the animal pole and the bottom part is called the vegetal pole. usually 8 divisions start one after another without waiting them to finish dividing so you have unequal # of cells alot more at the top and way little at the bottom. blastule formation occur very similarly as in sea urchin but instead of having 2 hollow balls you get one cavity in a shpere\n\n\nnext process is called gastrulation and i will explain it later then we can move into cell specification and differentiation of ectoderm mesoderm and endoderm after that i will talk about limb development and some basic principles of gene activation \n\nthe rest of development is when hell breaks loose and is different for all taxa
603300
You can never run out of sperm. Your body is making it all the time. It's a case of supply and demand.
274367
SPERMS ARE THE MALE REPRODUCTIVE CELLS IMPLANTED IN THE FEMALE UTERUS AFTER COPULATION