Male Repro

Question 1

Where are type A cells found and what is their function in Spermatogenesis?

Answer 1

• Outside blood-testes-barrier

Replicate by mitosis for a constant supply of spermatogonia to fuel spermatogenesis

Question 2

What do type B cells differentiate into?

Answer 2

Primary Spermatocytes (Go onto Meiosis)

Question 3

What do Meiosis 1 and 2 produce in Spermatogenesis?

Answer 3

1: 2 Secondary Spermatocytes
2: 4 Spermatids

Question 4

What is the passage way for sperm between the rete testis and epididymis?

Answer 4

Efferent ductules

Question 5

What changes does sperm make with its structure?

Answer 5

1) Discards excess cytoplasm
2) Grows flagellum
3) Lots of mitochondria
4) Acrosomes at its head

Question 6

What is the function of the epididymis?

Answer 6

Storage and sperm maturation maturation (60 days)

Question 7

What effect does FSH have on testes?

Answer 7

Stimulates Spermatogenesis.

Sertoli: Produce MIF, inhibin, activin which acts on pituitary to regulate FSH

Question 8

What is the effect of LH on the testes?

Answer 8

Stimulates Leydig cells to produce testosterone