spermatogenesis

Question 1

whats the first step of spermatogenesis?

Answer 1

germinal epithelial cells undergo mitosis to produce diploid spermatogonia

Question 2

whats the process and what is produced from diploid spermatogonia?

Answer 2

• mitosis and growth
• diploid primary spermatocyte

Question 3

whats the process and what is produced from diploid primary spermatocytes?

Answer 3

• meiosis I
• haploid secondary spermatocyte

Question 4

whats the process and what is produced from haploid secondary spermatocyte?

Answer 4

• meiosis II
• haploid spermatids

Question 5

whats the process and what is produced from haploid spermatids?

Answer 5

• differentiation
• spermatozoa

Question 6

what’s the function of Sertoli cells?

Answer 6

secrete a fluid that nourishes the spermatids and protects them from male immune system

Question 7

where does spermatogenesis occur?

Answer 7

seminiferous tubules

Question 8

what’s contained within the headpiece of sperm?

Answer 8

mitochondria

Question 9

what’s the function of Leydig cells?

Answer 9

produces testosterone = secondary sexual characteristics

Question 10

where are Leydig cells located?

Answer 10

in the interstitial tissue between seminiferous tubules

Question 11

where are Sertoli cells located?

Answer 11

line the walls of the seminiferous tubules

Question 12

which cells does LH stimulate to secrete a hormone?

Answer 12

stimulates the Leydig cells to secrete testosterone

Question 13

what do FSH and testosterone stimulate the Sertoli cells to do?

Answer 13

initiate meiosis of the primary spermatocytes and differentiation to produce spermatozoa