Male Reproductive System

Question 1

where does spermatogenesis occur

Answer 1

Seminiferous tubule (in the epithelium)

Question 2

where does sperm drain immediately after production

Answer 2

Rete

Question 3

what duct wraps around the testicles
and describe the passage of sperm through it

Answer 3

epididymis
head to body to tail (then to deferent duct)

Question 4

what duct joins to the epididymis

Answer 4

deferent (spermatic)

Question 5

which cells secrete testosterone

Answer 5

Leydig cells

Question 6

what is the function of Sertoli cells?

Answer 6

control the environment within seminiferous tubules and support them

Question 7

name the fascia surrounding the testes

Answer 7

Tunica Albuginea

Question 8

what is the double layered peritoneum ontop of the testes

Answer 8

tunica vaginalis and tunica albuginea

Question 9

where do the testes pass to move from the abdomen to the scrotum

Answer 9

inguinal cavity

Question 10

how do testes move through the inguinal cavity

Answer 10

pulled by the gubernaculum ligament

Question 11

name some issues if the testes remain in the abdomen

Answer 11

tortion
neoplasia due to high temperature

Question 12

what issue may the potential space between the layered peritoneum in the testes create

Answer 12

an inguinal hernia

Question 13

what is the venous plexus in the testes called

Answer 13

pampiniform plexus

Question 14

what vascularises the testes

Answer 14

testicular artery - branch of the abdominal aorta

Question 15

how may the testes be kept cool

Answer 15

venous exchange in the pampiform plexus - veins wrap around artery to cool blood as it enters the testes

sweat glands

being outside the body

Question 16

how are testes kept warm

Answer 16

cremaster muscle contracts to pull testes close to the body
Dartos muscle reduces exposed surface

Question 17

what is the spermatic cord

Answer 17

collection of arteries, veins, nerves, lymph vessels, deferent duct, peritoneum

Question 18

what is the function of Spermatic fascia

Answer 18

binds elements of the spermatic duct together

Question 19

where is the cremaster muscle

Answer 19

alongside the spermatic fascia

Question 20

what accessory gland lies at the end of the deferent duct

Answer 20

Ampulla

Question 21

what accessory gland lies near the opening of the deferent duct

Answer 21

Vesicular

Question 22

what accessory gland is composed of the body and disseminate part

Answer 22

prostate

Question 23

what accessory gland lies near the urethra exit

Answer 23

bulbourethral

Question 24

which animals have an ampulla duct

Answer 24

ruminants, horses, dogs

Question 25

which animals have a vesicular

Answer 25

ruminants, horses, pigs

Question 26

which domestic animal doesn't have a bulbourethral duct

Answer 26

dogs

Question 27

what is the function of the prepuce

Answer 27

prevent the penis from trauma and drying

Question 28

where does the penis originate

Answer 28

the ischial arch

Question 29

what is the corpus cavernosum

Answer 29

tissue within the penis main body

Question 30

what tissue runs along the corpus cavernosum and surrounds the urethra

Answer 30

corpus spongiosum

Question 31

what type of penis do dogs have, and how does it function

Answer 31

musculocavernous erection due to large volumes of blood in corpus cavernosum and spongiosum

Question 32

what type of penis do ruminants and pigs have, and how do they function

Answer 32

fibroelastic elongate by the relaxation of the retractor penis muscle, causing the sigmoid flexure to straighten

Question 33

what is a penis bone called

Answer 33

Baculum

Question 34

what is the copulatory lock

Answer 34

2nd stage of copulation in dogs, male and female stand back to back, glan swells before ejaculation, cannot be separated.

Question 35

which muscle is responsible for the expulsion of urethral contents

Answer 35

bulbospongiosus

Question 36

which muscle blocks venous return from corpus cavernosum

Answer 36

ischiocavernosi

Question 37

what vascularises the penis

Answer 37

branches of the internal pudendal artery

Question 38

what innervates the penis

Answer 38

pudendal nerve pelvic nerve hypogastric nerve