Horse Male Repro Lab

Question 1

What is it called when there is dorsal displacement or prominence of the sacral tuber

Answer 1

Indicates sacroiliac joint subluxation AKA hunter’s bump

-More visible when horse bears weight

Question 2

Sacrosciatic ligament is found in

Answer 2

In ungulates

Question 3

What ligament is between sacrum and body of ilium

Answer 3

Sacrosciatic ligament`

Question 4

What structures pass through greater sciatic foramen?

Answer 4

Cr gluteal a
Cr gluteal n
Sciatic n

Question 5

T/F There is a vaginal process in mares

Answer 5

F

only males`

Question 6

Main collection center for pelvis and pelvic limbs

-where are they located

Answer 6

Medial iliac LN

->Located at origin of deep cricumflex a

Question 7

Where are lateral iliac LN located

Answer 7

Terminal end of deep circumflex a

Question 8

Type of penis in stallion and dog

Answer 8

Stallion=musculocavernous penis

Dog=modified musculocavernous penis

Question 9

Distal end of penis that is mushroom shaped

Answer 9

Glans penis

Question 10

Distal part of glans penis that has largest circumference

Answer 10

Corona glandis

Question 11

Region caudal to corona glandis with abrupt narrowing

Answer 11

Collum glandis

Question 12

Space where free urethral process protrudes

Answer 12

Fossa glandis

Question 13

Dorsal pouch or diverticulum of fossa glandis

Answer 13

Urethral sinus

Question 14

Urethral sinus may be packed with foul fatty secretion known as
-when hardened

Answer 14

Smegma

hardened: bean of penis

Question 15

Spongy network of CT and smooth muscles pierced with vascular spaces

Answer 15

Erectile tissue

Question 16

Describe CSP

Answer 16

corpus spongiosum

-Surrounds urethra and expands to form glans and bulb of penis

Question 17

Describe CCP

Answer 17

Corpora cavernosa

-Paired dorsal erectile bodies bound by fibrous tunica albuginea

Question 18

3 main arteries that supply penis

Answer 18

External pudendal a
Obturator a
Internal pudendal a

Question 19

External pudendal a gives rise to

Answer 19

cranial a of the penis

Question 20

Obturator a gives rise to

Answer 20

Deep a of the penis (CCP)

Question 21

Internal pudendal a gives rise to

Answer 21

artery of the bulb (CSP)

Question 22

Factors that govern testicular descent

Answer 22

Insulin-like factor 3 (descendine)

Gubernaculum testis

Question 23

Ischiocavernosus m covers

Answer 23

crura of penis

Question 24

Retractor penis covers

Answer 24

All the way to free part of penis

Question 25

Bulbospongiosus m covers

Answer 25

All way to free part of penis

Question 26

When do testicles drop?

Answer 26

time of birth or 2 weeks before birth

Question 27

Accessory sex glands of stallion

Answer 27

Ampulla
Vesicular glands
Prostate
Bulbourethral gland