Chapter 9: Part 3 Sexual Maturation

Question 1

what are primary sex characteristics?

Answer 1

gonads, internal sex organs, and external genitalia (present at birth)

Question 2

what are secondary sex characteristics?

Answer 2

enlarged breasts and widened hips or a beard and deep voice - do not appear until puberty

Question 3

when does the onset of puberty occur?

Answer 3

when the hypothalamus secrete gonadotropin releasing hormones, creates two gondotropic hormones by anterior pituitary gland

Question 4

what do gonadotropic hormones do?

Answer 4

The gonadotropic (“gonad-turning”) hormones stimulate the gonads to produce their hormones, which are ultimately responsible for sexual maturation.

Question 5

what are the two gonadotropic hormones?

Answer 5

follicle-stimulating hormone and luteinizing hormone

Question 6

what is follicle stimulating hormone?

Answer 6

The hormone of the anterior pituitary gland that causes development of an ovarian follicle and the maturation of an ovum.

Question 7

what is the luteinizing hormone?

Answer 7

A hormone of the anterior pituitary gland that causes ovulation and development of the ovarian follicle into a corpus luteum.

Question 8

what do the ovaries produce?

Answer 8

estrogen

Question 9

what does estrogen do?

Answer 9

A class of sex hormones that causes maturation of the female genitalia, growth of breast tissue, and development of other physical

Question 10

what happens when a man is treated with estrogen?

Answer 10

he will grow breasts, facial hair will become finer and softer BUT voice will remain low since the enlargement of larnyx is permanent

Question 11

What happens when a woman receives a lot of androgen?

Answer 11

will grow a beard and voice becomes lower