Secondary and primary sexual characteristics of men and women
There are a number of differences in the structure andfunctions of the organs of the body, which determine the belonging of all organisms to a particular sex. Primary and secondary sexual characteristics help distinguish a man from a woman and a female from a male, despite the fact that they are determined by the same genes, which under the influence of special hormones can manifest themselves to a greater or lesser extent. Underdevelopment or pathological changes in the ovaries, as a rule, significantly weaken the action of the female hormone, which leads to the manifestation of secondary signs in men. The body of the latter,

Primary sexual characteristics
- Sexual penis, prostate gland and testicles in men.
- Vagina, uterus and ovaries in women.
Secondary signs of sexual development are observed in both women and men, but are manifested in varying degrees.
Signs of secondary puberty

Features of development of sexual characteristics
Sexual development in women and men occurs indifferent times: ovules, for example, are formed during the embryonic development, but they begin to grow only at the age of 8-12 years. Men's sperm are produced

There are cases when one individual canto attend both female, and man's glands simultaneously. This phenomenon is called hermaphroditism and arises because of the abnormal development of the reproductive system. If the primary sexual characteristics are manifested early, then the secondary signs are formed during the growth of the body. In the end, the individual reaches biological maturity, including sexual maturity, which occurs after the completion of physiological and morphological development. From this moment the organism is capable of reproducing healthy full-fledged offspring.