The gonads are the organs responsible for the formation of gametes. The term has its etymological root in the Greek word gonḗ, which is translated as "generation". The gametes, on the other hand, are the sexual cells (female and male) that, when united, generate the zygote of animals and plants.
The female gonads are the ovaries, which produce and secrete the ovules (the female gamete) and various hormones. In the human being, these gonads are even structures that are linked to the uterus and the wall of the pelvis.
Before the appearance of a tumor in the ovaries, it is possible that the woman undergoes an oophorectomy, a surgical procedure that is developed to remove one or both gonads. When both ovaries are removed, the person enters the menopause because it can not produce more eggs. It should be noted that oophorectomy can also be carried out in a process of sex change.
The testicles, on the other hand, are the male gonads. Oval shaped, the function of these glands is the segregation of sperm (the male gamete) and sex hormones.
Each man has two testicles that are in a bag called the scrotum, located under the base of the penis. In the testes are the seminiferous ducts, which produce sperm and communicate with the excretory ducts.
The anorquia is a disorder that leads to the child is born without testicles. Another medical condition is cryptorchidism, with which the testicles do not descend from the abdominal cavity to the scrotum. Among the problems that can be registered specifically in the testes or scrotum, testicular cancer and hydrocele appear.