Hormonal Control - Males

Question 1

How long can sperm survive in the female reproductive tract?

Answer 1

5-7 days

Question 2

What hormone triggers the release of mature sperm?

Answer 2

Testoterone

Question 3

What effect does FREE testosterone have on GnRH and LH?

Answer 3

Negative feedback control

Question 4

Where is testosterone produced?

Answer 4

Testes

Question 5

What hormone is responsible for FSH inhibition?

What cell is it produced by?

Answer 5

Inhibin

Sertoli cells

Question 6

Testosterone mainly travels around the body bound to what?

Answer 6

SHBG

Question 7

What is the active form of testosterone called?

What enzyme breaks it down?

Answer 7

Dihydrotestosterone

5-aplha reductase

Question 8

Testoterone is also broken down into oesterogen, why is it important in males?

Answer 8

Bone health

Question 9

What cell produces testosterone and what is it triggered by?

Answer 9

LH

Leydig cells

L=L

Question 10

What cell does FSH stimulate and what does it produce?

Answer 10

Sertoli (S=S)

Androgen-binding protein
Inhibin