Male reproductive histology

Question 1

Spermatogonia S_A

Answer 1

most immature cell, found at basal lamina, undergo mitosis

large round/oval nuclei

Question 2

Spermatogonia S_B

Answer 2

Near basal lamina, slightly closer to lumen, undergo mitosis, committed to spermatogenesis

Dispersed chromatin, prominent nucleolus

Question 3

1º spermatocyte

Answer 3

large nucleus, large clumps of chromatin, copius cytoplasm, moving towared adlumenal compartment. Undergo meiosis I.

Question 4

2º spermatocyte

Answer 4

rapidly dividing, not usually seen. Undergo meiosis II.

Question 5

spermatid

Answer 5

close to lumen, dense, round nucleus

Question 6

spermatozoon

Answer 6

near lumen, dense, pointed nucleus

Question 7

basal compartment

Answer 7

spermatogonia

Question 8

adlumenal compartment

Answer 8

spermatocytes

Question 9

lumenal compartment

Answer 9

spermatids and spermatozoa

Question 10

Leydig cell

Answer 10

andrgen-producing (primarily testosterone). Outside of seminiferous tubule, polygonal, eosinophilic

cytoplasm contains: lipofuscin (brown), crystals of Reinke (pink)