male anatomy in MODESTO male anatomy MODESTO

male anatomy in MODESTO

male anatomy MODESTO

male anatomy in MODESTO.Sperm cells hand down genes from generation to generation.
Every cell in the human body, except sperm and egg cells, contain fortysix chromosomes, the equivalent of two full copies of the human genetic code.
It is the interaction of the two copies of the genome that produces the distinct characteristics people exhibit.
In a normal healthy male, there is a complex process involved in making sperm.
Through a system of chemical messages from the gnrh, his body releases the fsh and lh, which in turn stimulates cells to begin producing testosterone.
Each sperm is made up of three essential parts: the head, the midpiece, and the tail.
The scrotum is an external sac located just behind the penis and contains the testicles, the two small organs that produce sperm.
The sperm cells are very sensitive to changes in temperature, so it is important to keep the temperature as regular as possible.
If the testicles are too cool, the scrotum will tense up and pull closer to the body.
These glands secrete fluids that are added to the sperm to create a mixture called semen.
This fluid contains special proteins and chemicals that contribute to the survival of the sperm cells while they are in the female reproductive tract.
The semen will eventually make its way out of the body as ejaculate.
At each ejaculation, be it from sex or masturbation, between 20 and 200 million sperm are released.
Many people think of the penis as the main male organ of reproduction.
Its job is to penetrate the female partner and deliver sperm from the scrotum to the inside of her body.
The penis is rich in blood vessels and spongy tissue that, when sexually aroused, fill with blood and cause the penis to harden, making penetration possible.
Another branch of the urethra carries urine from the bladder to the outside of the body, through the same opening, or meatus, as the sperm.
There is a special valve that prevents urine from exiting the bladder when he is sexually aroused.