Lecture 29 Male Reproductive System

Question 1

Answer 1

Question 2

Answer 2

Question 3

Answer 3

Question 4

Answer 4

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

Question 8

Answer 8

Question 9

Answer 9

Question 10

Answer 10

Question 11

Answer 11

Question 12

Answer 12

Question 13

Answer 13

Question 14

Answer 14

Question 15

Answer 15

Question 16

Answer 16

Question 17

Answer 17

Question 18

Answer 18

Question 19

What transports spermatozoa from the epididymis to the ejaculatory duct?

Answer 19

The ductus deferens in the spermatic cord.

Question 20

Where is spermatazoa produced?

Answer 20

Question 21

Which cells of the male reproductive system secrete testoterone?

Answer 21

Leydig Cells

Question 22

Which cell secretes inhibin and androgen-binding protein?

Answer 22

Sertoli cells
– Supporting (sustentacular) cells
– Extend from basement membrane to lumen

– Tight junctions join adjacent Sertoli cells

– Secrete inhibin

– Secrete androgen-binding protein
• Blood-testis barrier
• Hormone that inhibits FSH secretion
• Binds testosterone to keep concentration high

Question 23

Which hormone stimulates Leydig cells to secrete testosterone?

Answer 23

Luteinizing hormone (LH)

Question 24

Which hormone stimulates sertoli cells to secrete androgen binding protein?

Answer 24

Follicle-stimulating hormone (FSH)
• Stimulates Sertoli cells to secrete androgen-binding protein