Mens Reproduction

Question 1

How often do men release GnRH?

Answer 1

8-14x a day from puberty til death

Question 2

How are LH and FSH stimulated in male reproductive system?

Answer 2

Hypothalamus releases GnRH that stimulates anterior pituitary to release LH and FSH.

Question 3

Function of testosterone

Answer 3

Bone growth and calcium retention to inhibit production of osteoclasts.
RBC production.
Sodium and water reabsorption in PT of kidney

Question 4

Function of DHT?

Answer 4

Fetal development of penis, penile urethra, scrotum, and prostate.
Pubertal growth of scrotum, prostate, sexual hair, and sebaceous glands.

Question 5

What does testosterone make and how?

Answer 5

DHT by enzyme 5 alpha reductase

Question 6

How is testosterone released/stimulated?

Answer 6

LH to interstitial cells of leydig that then stimulates androgen production of DHEA and androstendione to make/release testosterone

Question 7

How are sperm and inhibin stimulated?

Answer 7

When FSH sent to serotoli cells of semineferous tubules.