Anatomy testicles penis

The sac-like glands that lie behind the bladder and release a fluid that forms part of semen. It is made up of three lobes: The testicles make sperm and, to do this, the temperature of the testicles needs to be cooler than the inside of the body. The vas deferens is between the epididymis and the urethra and connects these together. The seminal vesicles are sac-like structures attached to the vas deferens to the side of the bladder.
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Male Reproductive System

When puberty begins, usually between the ages of 9 and 15, the pituitary gland — which is located near the brain — secretes hormones that stimulate the testicles to produce testosterone. The seminal vesicles and prostate gland produce a whitish fluid called seminal fluid, which mixes with sperm to form semen when a male is sexually stimulated. The sperm then move to the vas deferens, or sperm duct. The urethra is also part of the urinary system because it is also the channel through which urine passes as it leaves the bladder and exits the body. At birth, these tubules contain simple round cells, but during puberty, testosterone and other hormones cause these cells to transform into sperm cells.
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Overview of the Male Anatomy

Some boys are circumcised, which means that a doctor or clergy member cuts away the foreskin. Alongside the testicles are the epididymis and the vas deferens, which make up the duct system of the male reproductive organs. The bladder's walls relax and expand to store urine and contract and flatten to empty urine through the urethra. The testes are responsible for making sperm and are also involved in producing a hormone called testosterone. When a baby boy is born, he has all the parts of his reproductive system in place, but it isn't until puberty that he is able to reproduce.
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Description:They are different in shape and structure, but both are specifically designed to produce, nourish, and transport either the egg or sperm. The head contains genetic material genes. The tube that allows urine to pass outside the body. From the vagina, the sperm make their way up through the cervix and move through the uterus with help from uterine contractions. The testicles are oval-shaped and grow to be about 2 inches 5 centimeters in length and 1 inch 3 centimeters in diameter. The scrotum changes size to maintain the right temperature.

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