What are the testicles?
testicles or testicles are primary male sexual and reproductive glands. Two eggs or rounded glands are located in the scrotum, the bag structure under the abdomen. The testes are responsible for generating sperm or immature sperm. When one mature sperm combines with a mature egg woman during sexual intercourse, fertilization and fetal results. Thus, sperm is essential for man reproduction. Gamete is a reproductive cell that contains a chromosome bearing genetic information in the form of deoxyribonucleic acid (DNA). When the sperm cell penetrates into an egg that is produced in female ovaries, the results of fertilization. Fertilized eggs determine the genes and properties of the offspring. The sex of offspring depends on the type of chromosome carried by sperm cells. The sperm is found in human bodies and eggs are the largest. The sperm takes approximately two months to ripen. From epididymis, sperm will travel through a series of anatomical pipes to the urethra where ejaculation begins their way toeggs. When the sperm passes through this series of pipes, they associate with other sperm components - mucus, proteins and enzymes - to nourish and protect the semen after being inside the female vagina.
While the testicles are - in terms of sperm production - reproductive glands are also an important part of the endocrine system. The endocrine system produces body hormones, chemical messengers that are vital to the proper functioning of countless body processes. The testicles are responsible F or Hormone most commonly associated with men: testosterone.
The testicles produce testosterone in the male fetus while it is still in the womb, and this hormone is responsible for creating primary sexual characteristics of man. Testosterone production then slows down from a few months after birth until the boy reaches puberty. Testosterone increases at puberty and secondary sexual properties begin to appear, including deepeningVoice, faces and hair, as well as creating viable sperm. Testosterone is also the primary reason why men tend to have larger frames and more muscle mass than women. During the life of an adult man remains important for maintaining muscle muscles and overall health.