19.How sexual maturity is different from physical growth. What are the
changes seen among the boys during puberty. Which hormone is
responsible for the changes in girls. What happens if this hormone is not
secreted properly.
Answers
Explanation:
Sexual maturity is brought about by a maturing of the reproductive organs and the production of gametes. It may also be accompanied by a growth spurt or other physical changes which distinguish the immature organism from its adult form.
In boys, the first puberty change is the enlargement of the scrotum and testes. At this point, the penis does not enlarge. As the testes and scrotum continue to grow, the penis grows. The first growth of pubic hair produces long, soft hair that is only in a small area around the genitals.
Early in puberty, levels of luteinizing hormone and follicle-stimulating hormone increase, stimulating the production of sex hormones. The increased levels of sex hormones (primarily estrogen) result in physical changes, including maturation of the breasts, ovaries, uterus, and vagina
In women, a lack of follicle stimulating hormone leads to incomplete development at puberty and poor ovarian function (ovarian failure). In this situation ovarian follicles do not grow properly and do not release an egg, thus leading to infertility.
Answer:
Explanation:
Sexual maturity is brought about by a maturing of the reproductive organs and the production of gametes. It may also be accompanied by a growth spurt or other physical changes which distinguish the immature organism from its adult form.
In boys, the first puberty change is the enlargement of the scrotum and testes. At this point, the penis does not enlarge. As the testes and scrotum continue to grow, the penis grows. The first growth of pubic hair produces long, soft hair that is only in a small area around the genitals.
Early in puberty, levels of luteinizing hormone and follicle-stimulating hormone increase, stimulating the production of sex hormones. The increased levels of sex hormones (primarily estrogen) result in physical changes, including maturation of the breasts, ovaries, uterus, and vagina
In women, a lack of follicle stimulating hormone leads to incomplete development at puberty and poor ovarian function (ovarian failure). In this situation ovarian follicles do not grow properly and do not release an egg, thus leading to infertility.
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