Reproductive Endo - Lecture 4

Question 1

primary male hormone

Answer 1

testosterone (T)

Question 2

testosterone is an

Answer 2

androgen

Question 3

which is more potent? DHEA or Testosterone?

Answer 3

Testosterone

Question 4

5a-reductase

Answer 4

converts testosterone to DHT (most potent androgen)

Question 5

why is it necessary for GnRH stimulation to be pulsatile?

Answer 5

necessary for gonadotropin secretion. Continuous, nonpulsatile GnRH release downregulates GnRH receptors and inhibits FSH/LH secretion

Question 6

Estradiol (E2) feedback

Answer 6

positive feedback actions on LH secretion prior to ovulation

Question 7

gonadal steroid feedback

Answer 7

mostly negative feedback control of GnRH and LH secretion

Question 8

activation of steroid receptors regulates

Answer 8

gene transcription

Question 9

gene transcription in gonads regulates:

Answer 9

gametogenesis and hormone synthesis

Question 10

gonadal steroid regulate

Answer 10

protein synthesis in reproductive organs - breasts, uterus, male accessory glands, brain