Male Reproduction

Question 1

Seminiferous tubule?

Answer 1

Coiled tubules packed into lobes of the testes that produce sperm.

Question 2

Sertoli cells?

Answer 2

Nourish developing sperm

Question 3

Intersticial cells?

Answer 3

Surround tubules and produce testosterone

Question 4

Tubular epididymus?

Answer 4

Sperm mature and are stored here behind each teste

Question 5

Vas deference?

Answer 5

Once sperm mature they are propelled here by muscle contraction.

Question 6

Urethra?

Answer 6

Sperm moves from storage (vas deference) to urethra for ejaculation

Question 7

Hypothalmus?

Answer 7

1. Controls testes by secreting GnRH

Question 8

GnRH?

Answer 8

2. Triggers anterior pituitary to produce FsH and LH

Question 9

3?

Answer 9

FSH released by anterior pituitary. Promotes spermatogenisis in seminiferous tubules

Question 10

What happens when Inhibin / Sperm levels rise?

Answer 10

Hypothalmus and pituitary reduce release of GnRH and FSH which reduces sperm and inhibin.

Question 11

What secretes nutrients for sperm at ejaculation?

Answer 11

Seminal Vessicles

Question 12

What duct is leading from vas deference and carries semen to urethra?

Answer 12

Ejaculatory duct

Question 13

What gland secretes alkaline fluid to help sperm and neutralize vagina acidity?

Answer 13

Prostate gland

Question 14

What gland secretes mucus?

Answer 14

Cowpers gland / Bulbourethral gland

Question 15

Function of an acrosome?

Answer 15

-Contains enzymes to help penetrate outer layer of egg

Question 16

What is spermatogenesis?

Answer 16

-Development of sperm through meiosis
-Cell division reducing chromosomes by half

Question 17

Testosterone functions?

Answer 17

-Secondary sex characteristics (body hair, voice, muscles, sweat, aggression, sex drive)
-Development of penis and testes
-Development of sperm