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| suspended outside the abdominal cavity by the scrotum |
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| , a pouch of skin that keeps the testes close or far from the body at an optimal temperature for sperm development. |
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| are inside each testis, and are where sperm are produced by meiosis. |
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| inside the tubules divide by meiosis to produce spermatids that in turn develop into mature sperm |
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| contains one of the two testes, the glands that produce sperm, and one of the epididymides, |
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| where the sperm is stored |
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| continuous with the skin of the lower abdomen and is located directly behind the penis and in front of the anus. |
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| The scrotal wall is a thin layer of skin lined with smooth muscle tissue |
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| connects to a muscular partition, the septum, which serves to divide the scrotum into its two areas. |
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| serves to divide the scrotum into its two areas |
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| the thin layer of subcutaneous tissue underlying the skin of the scrotum, consisting mainly of the dartos muscle. |
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| the thin muscle that covers the testis. Its main function is to lower and raise the scrotum, which helps to control the temperature of the testis and avoids overheating. The muscle also often contracts when a man is sexually aroused in order to protect the testis during intercourse. |
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| muscle originates from the internal oblique muscle and inserts beneath the testis. |
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| helps the developing sperm cells acquire the ability to move and fertilize the egg. |
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| sperm are stored for a while here |
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| a long tube that ascends from the epididymis in the pelvic cavity |
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| The sperm can be stored in this tube for a long time without losing their ability to fertilize an egg, |
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| store sperm and are the site of their final maturation process. |
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| This fluid is composed of citric acid, calcium and acid phosphate |
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| neutralizes the effect of the VJJ’s acid, thus allowing the sperm to swim easily toward the egg. |
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| largest of the accessory glands and puts its secretions directly into the urethra. These secretions are alkaline to buffer any residual urine, which tends to be acidic, and the acidity of the woman’s vagina. |
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| needs a lot of zinc to function properly, and insufficient dietary zinc (as well as other causes) can lead to prostate enlargement |
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| enlargement of the prostate |
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| can often be treated by adding supplemental zinc to the man’s diet, but severe cases require surgical removal of portions of the prostate. |
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| passes through the penis and opens to the outside |
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| Their secretions are about 60% of the total volume of the semen (sperm and associated fluid) and contain mucus, amino acids, fructose as the main energy source for the sperm |
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| located behind the bladder |
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| stimulate female uterine contractions to move semen up into the uterus |
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| empty into the urethra (which also empties the urinary bladder). |
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