13.4 Androgens and Estrogens

Question 1

What are androgens?

Answer 1

all hormones involved in the development and maintenance of male characteristics

Question 2

What are estrogens?

Answer 2

all hormones involved in the development and maintenance of female characteristics

Question 3

What is the primary androgen?

Answer 3

testosterone

Question 4

What is the primary estrogen?

Answer 4

estradiol

Question 5

What are the male secondary sexual characteristics?

Answer 5

maturation of the genitalia
male distribution of facial and body hair
deepening of the voice
increased muscle mass

Question 6

What are the female secondary sexual characteristics?

Answer 6

maturation of the genitalia
breast development
wider hips
pubic hair

Question 7

What controls sex steroid production?

Answer 7

hypothalamus and anterior pituitary

Question 8

What is gonadotropin releasing hormone?

Answer 8

GnRH = released by the hypothalamus and stimulates the pituitary to release the gonadotropins FSH and LH

Question 9

What does LH do in men?

Answer 9

men = acts on intersitial cells to stimulate testosterone production

Question 10

What does LH do in women?

Answer 10

stimulates the formation of the corpus luteum and progesterone secretion

Question 11

What does FSH do in men?

Answer 11

stimulates the sustenacular cells

Question 12

What does FSH do in women?

Answer 12

stimulates the granulosa cells to secrete estrogen

Question 13

What inhibits the production of GnRH, FSH, and LH?

Answer 13

feedback inhibition by the steroids

Question 14

What does inhibin do?

Answer 14

provides feedback regulation of FSH production