Male Reproductive System

Question 1

Testis

Answer 1

They have 3 key functions:
1.Produce spermatozoa
2.Produce fluid to transport the sperm from testes into the female
3. Secrete testosterone

Question 2

Cryptorchid

Answer 2

One testis retained

Question 3

Bilateral cryptorchid

Answer 3

Both testis retained

Question 4

Spermatogenic Cells

Answer 4

These cells divide by meiosis to produce immature sperm or spermatids, each contain the haploid number of chromosomes

Question 5

Sertoli Cells

Answer 5

Secrete oestrogen and nutrients to prolong the survival of sperm

Question 6

Epididymis

Answer 6

-Lies dorsal to testis
-Storage and maturation of spermatozoa

Question 7

Vas Deferens

Answer 7

-Connects with urethra
-During ejaculation the sperm and fluid produced in the seminiferous tubules are propelled along epididymis and up the deferent duct to join the urethra

Question 7

Penis

Answer 7

The penis has 2 functions:
1. Convey sperm and fluid from the testis into female
2. Convey urine from the bladder to external environment

Question 8

Bulbus Glandis

Answer 8

-Engorges with blood, reaches full size
-Remains clamped in place by contractions of cingulum muscles in vagina
-Erection subsides in 15-20 mins

Question 9

Penis:Cat

Answer 9

-Barbed
-Queens are induced ovulators
-Barbs thought to induce ovulation

Question 10

Urethra

Answer 10

Pelvic Portion- entry point of vas deferens and accessory reproductive glands
Penile portion- Runs down the length of the penis

Question 11

Hyperplasia

Answer 11

Common in older dogs, prostate becomes enlarged