I sperm at the onset of puberty which will

            I am sure at one point in your life you said you wanted kidsin the future or maybe even just thought about it, but do you know how it allreally happens or the role you play as a male? In this essay, I will list allof the structures of the male reproductive system such as the Testes,epididymis, urethra, Vas deferens, prostate gland seminal vesicle, urinarybladder, and finally the penis. I will also explain the function of each one.The reproductive system of a male isa set of organs that works together to make and move sperm that will soon beused to fertilize eggs. Guys start producing sperm at the onset of pubertywhich will start at different times for different people, the typical age isaround ten –twelve years old. Once puberty is complete, the testicles willproduce millions of sperm a day. During puberty, a hormone called gonadotrophinreleasing hormone (GnRH) increases, it is produced in a part of the braincalled the hypothalamus.

This causes an increase in the production of twohormones called luteinizing hormone (LH) and follicle stimulating hormone (FSH).Many Woman would argue that they are the most important part when it comes tomaking a baby since they hold it in their stomach and carry the eggs, but mencan also argue that they are in fact the most important because they create thesperm that goes into the egg in the first place. Studies have shown, that theyare both equally needed the same amount for anything to happen. Even thoughthey are both coming together to make one final end product (A baby) they bothhave different tasks in the very long process, they also have different structuresthat help make it happen, both sexes in humans have a set of gonads.  The most important part of the reproductive systemfor a male is the testes or also known as testicles which are oval-shapedorgans that are in a sac called the scrotum behind the penis, they are mostimportant because that is where sperm cells, and testosterone are created dueto the hormones that were already made in the brain. The testicles also producehormones which help men develop some characteristics associated with being aman including: the hair distribution, Enlargement of the penis, deepening ofthe voice, muscle growth, bone growth, and increased height. Each sperm celltakes between 65-75 days to form and roughly around 250 million are producedevery day, a male is able to still have kid even if he only has one testicleinstead of two.

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The testes are held together as a pair in the scrotum, Ascrotum is known as a loose sac of skin that will protect the testes and can bethought as “The Temperature Controller”, because each teste must be cooler thanthe rest of the body for normal sperm production. Since they need to be cooler,the scrotum has muscles in it that will allow it to tighten or relax, forexample it will move the testes closer to the body for warmth or away from thebody to cool down. Let’s just say the scrotum didn’t move at all and it wasconstantly pressed against the body, our own body heat will kill the spermcells that have been made, or it might prevent sperm cells from being made inthe first place.  Eachteste has diploid cells called spermatogonia which are derived from embryonicgerm cells.

Spermatogonia are stem cells that divide by mitosis to ensure acontinuous supply of Spermatogonia is always available. Sperm is then made andstored in the epididymis. The epididymis is a long and coiledtube that collects sperm from the testes and also provides a good environmentfor the sperm, where it can mature and gain the ability to move on its ownthrough the female reproductive system also be able to fertilize an egg. Thisis very similar to the seminal vesicles, which is a vesicle that secrets athick fluid that contains mucus and the sugar fructose, which will provide mostof the energy used by the sperm as they propel themselves through the femalereproductive system.The epididymis can be divided intothree major parts: the head, the body, and the tail.  It is also known to be two tight and thin coiledtubes that carry sperm from the testes into the Vas deference.

The VasDeference connects the epididymis to the ejaculatory duct. During the processof ejaculation, the walls of the vas deference thickens and propels the sperminto the urethra which is a tube that carries out sperm and urine from thebody. Before the sperm leaves the body, it is filtered to make sure no urine ispresent, if urine is left in it will kill the sperm since it is acidic. Spermcan only last for about 30 seconds outside the body after ejaculation, that’sif it does not go into the female right away, if the sperm did enter the vaginait can last up to seven days long. Next you have the prostate gland which isshaped like a walnut. It will grow throughout a man’s life, its main functionis to secrete prostate fluid which is one of the components in your semen, themuscles of the prostate gland also help’s push the semen along.  It Is located inferior to the bladder in thepelvic cavity.

The prostate contains an ejaculatory duct. The muscles of theprostate gland also help propel the semen into the urethra during ejaculation,the prostate gland is also similar to the Bulbourethral gland also known as thecowper’s gland, which produces thick clear mucus before ejaculation (pre-cum), Nowall we have left is the penis. The penis is the male sex organ, that reachesits full growth size when a boy is going through puberty. When you becomesexually aroused, a number of changes occur inside the penis. The arteries thatsupply the penis gets bigger, allowing more blood flow to enter the tissues. Themore blood flow that occurs causes the penis to enlarge and become more rigid. Theblood flow plus signals from the nervous system and chemical changes causes anerection. Ejaculation is known for the contractions that release semen.

That isa reflex action, which means it in not consciously controlled. As part of thisreflex action, the opening that empty’s the bladder is closed so no urine is releasedthe same time as the semen. The volume of sperm in a typical ejaculation isbetween 2.5-5 milliliters. That is more than 20 million sperm in each mL ofsemen. During intercourse, the penis enters the female’s vagina, carrying thesperm to the neck of the cervix to fertilise a woman’s egg.

Women’s menstrual cycle lengths canvary but the most common cycle length is somewhere between 23 and 35-day cyclewhich is the result of the release of a mature egg from the ovary. The eggmight go on to become fertilized or may be released, unfertilized, along thelining of the uterus. The latter might take place with monthly bleeding calledmenstruation. The delicate cycle results from a complicated interaction amongseveral interactions with several hormones such as, Follicle-StimulatingHormone (FSH), Estrogen, Luteinizing Hormone (LH), and Progesterone. Follicle-Stimulating Hormone (FSH) stimulatesthe development of new follicles as well as the production of the hormone estrogen.

During this phase which is known as the follicular phase, an increase in FSHoccurs. This increases the growth and development of new follicles, which willdevelop into the ovulated egg.Estrogen is responsible for thecontinuing development of follicles within the ovaries, but the effects ofestrogen are not limited to within the ovaries. Within the uterus, the risinglevels of this hormone in thickening the endometrium (a layer of the uterus). Thisalso causes the mucus within the cervix to become thicker.

Finally estrogen actsas a suppressor if its own release called a negative feedback loop. It also suppressthe production of LH just before ovulation. Luteinizing Hormone (LH) peaks in themiddle of the 28-day cycle. It is typically known as the LH surge and gives thesignal that ovulation is about to occur. Since the peak of LH releases,concentration of this hormone becomes nine times more-higher than usual. Ovulationmostly occurs within the 10 hours of the LH surge.