PHYSIOLOGY - males

Question 1

in males, what does LH stimulate

Answer 1

Leydig cells

Lh = Leydig cells
in females LH stimulates theca cells

Question 2

in males, what does FSH stimulate

Answer 2

Sertoli cells

fSh = Sertoli cells
in females FSH stimulates granulosa cells

Question 3

what do Leydig cells secrete once stimulated by LH

Answer 3

testosterone

Question 4

what do Sertoli cells do once stimulated by FSH

Answer 4

spermatogenesis (gamete production)

Question 5

once the Leydig cells produce testosterone, what is the testosterone used for

Answer 5

spermatogenesis in the Sertoli cells

Question 6

increased testosterone does what to GnRH and LH

Answer 6

decreases them both (negative feedback)

Question 7

are Leydig cells germ cells

Answer 7

no

they are sex cell/stromal cells

Question 8

where are Sertoli cells (think about what they do)

Answer 8

in the seminiferous tubules of the testes

Sertoli cells use testosterone made by Leydig cells to undergo spermatogenesis

Question 9

at what time of day does testosterone production pea k

Answer 9

9am

Question 10

what do Sertoli cells secrete (hormone) that tells the hypothalamus to tell the anterior pituitary to stop producing FSH (2)

Answer 10

androgen binding globulin and inhibin