What is the reproductive system?
The reproductive system consists of a group of sexual organs that mean the physical difference between men and women. Human reproduction begins when sperm fertilizes from a woman from a woman. Reproductive organs only become fully functional when the body matures and experiences puberty, but the level of hormones that lead to these changes decreases as people age. The female reproductive system produces eggs and women are born with the ovaries that contain thousands of them. When puberty begins in women, the pituitary gland begins to stimulate the ovaries to produce estrogen. Other functions of the female genital system include the acceptance of semen, transport of eggs to the place of fertilization and birth of the child. They are located outside the body. The testes produce sperm and testosterone of the male hormone with a puberty. Mature men are able to produce millions of sperm daily. Once the testes create sperm, the epididymis acts as a storage center. The fetus grows inside the uterus during 40 weeks of pregnancy. Characteristics that children inherit from their familyIčů, come from genetic material contained in women's eggs and sperm men.
As the woman ages, there are many changes in her reproductive system. Menopause is a normal process for women and causes ovaries to stop release of eggs, end the ability of a woman to reproduce and end menstrual periods. Hormone levels of estrogen, progesterone, estradiol and testosterone decrease during this period.
Testosterone is an important hormone for the male reproductive system. It allows the development of voice characteristics and stimulates muscle growth. Likewise, without testosterone, men should not have sperm and do not grow the hair of the face. Men, like women, need estrogen to develop robust and healthy bones.
The male reproductive system is also subject to changes due to aging. Most of these changes take place in the testicles. Testosterone levels decrease with age and reduces sexual desire. Men also forThey are less blood flow to the penis and thinned their testicles. Andropause or a gradual decline in testosterone production continues when a person ages, but testosterone production never stops completely.