More Male Reproduction

Question 1

Morphological changes of a sperm cell 2

Answer 1

1. Flagellum- tail that propels
2. Acrosome- contains enzyme for sperm penetration

Question 2

Epididymis function

Answer 2

Sperm storage

Question 3

Reproductive hormone released from hypothalamus

Answer 3

GNRH- Gonadotropin Releasing Hormone

Question 4

Reproductive hormones released from the pituitary in response to the hypothalamus

Answer 4

LH- Luteinizing Hormone
FSH- Follicle Stimulating Hormone

Question 5

Which hormone from the pituitary stimulates leydig cells of the testes to release testosterone

Answer 5

LH- Luteinizing hormone

Question 6

Endocrine glands like the testes have a __________ ____________ system to the hypothalamus

Answer 6

Negative feedback system

Question 7

Two functions of sertoli cells (nurse cells)

Answer 7

1. Increase miotic division
2. Release sperm cells from epididymis

Question 8

Cryptorchidism

Answer 8

Failure to descend into scrotum

Question 9

Most common congenital defect inheritable in dogs and presumed in cats

Answer 9

Cryptorchidism

Question 10

3 Cryptorchidism complications

Answer 10

1. Loss of effective spermatogenesis (sterile if bilateral)
2. Increased testicular neoplasia risk
3. Spermatic chord torsion