Male genital system

Question 1

The lymph vessel ends in

Answer 1

in the lumbar aortic and internal iliac lymph nodes.

Question 2

The testicular nerve plexus is formed by

Answer 2

autonomic fibers from the aortic and caudal mesenteric ganglion.

Question 3

The testis and epididymis are highly vascularized with blood from the testicular artery, which enter

Answer 3

the tunica albuginea and the mediastinum.

Question 4

The testicular vein forms a pampiniform plexus around the testicular artery before it reaches the testis, the right one joins the …………. and the left one ends in the …………

Answer 4

the caudal vena cava

left renal vein

Question 5

The tail extremity of the testis is connected to the tail of epididymis by the

Answer 5

proper ligament of testis.

Question 6

The tail of epididymis is in turn connected to the scrotum by the

Answer 6

ligament of tail of epididymis

Question 7

High temperature, old age and debility make the scrotum ………, while cold, young age and good condition make the scrotum…………… to the testes.

Answer 7

elongated and flaccid

short, corrugated and closely applied

Question 8

The skin is thin elastic, soft to the touch. Why?

Answer 8

due to presence of numerous sweat and sebaceous gland.

Question 9

What is colour of the skin in testis horse, dog & ox?

Answer 9

It is pigmented in horse and dog and fleshy colored in ox.

Question 10

It extends from the tail of epididymis to the beginning of the pelvic urethra to open on

Answer 10

on the colliculus seminalis.

Question 11

It begins by a tortuous part and gradually becomes straight and runs along the medial side of the head of epididymis and continues in the spermatic cord in a special fold called the ………..and enters the abdominal cavity through …………

Answer 11

plica ductus deferens

the inguinal canal.

Question 12

It then turns caudally to enter where it courses caudally in ……., medial to………

Answer 12

the genital fold,

the seminal vesicle.

Question 13

The wall of the terminal part of the ductus deferens is thickened forming ………., which is well developed in ………, poorly developed in ……… and absent in …………

Answer 13

the ampulla ductus deferns
ruminants and equines
canine
swine and felines

Question 14

Beyond the ampulla, the deferent duct abruptly diminishes in the size and opens on the colliculus seminalis either independently as ……… or unites with the terminal part of the corresponding vesicular gland forming the ejaculating duct as in ……..

Answer 14

swines, canines and camel

ruminants and equines.

Question 15

…………….is formed from all structures, which suspend the testis in the scrotum

Answer 15

The spermatic cord

Question 16

It is closely invested by ………. (which covers the cord) and surrounded by the narrow proximal part of the ……… (which lines the inguinal canal) .

Answer 16

tunica vaginalis visceralis

tunica vaginalis partialis

Question 17

The two tunica are continuous with each other along the caudal aspect of the cord by ………

Answer 17

mesofuniculum

Question 18

The spermatic cord is surrounded by the most layers of the scrotum. It is short and thick in ……….. and long in other species.

Answer 18

equines

Question 19

…………. removal of the testicles by either surgical or non-surgical methods

Answer 19

Castration

Question 20

The root of the penis consists of ……… which are attached to the ischial arch and the …………… which is present between the two crura.

Answer 20

two crura

bulb of penis

Question 21

The body of the penis is a firm structure made up of erectile tissues termed ………… and the penile urethra enclosed in the………….

Answer 21

paried corpus cavernosum penis

corups spongiosum penis

Question 22

The body of the penis close to the root is firmly attached to the ventral aspect of the pelvic symphysis by two strong flat bands of connective tissue termed ………..

Answer 22

the suspensory ligament of penis.

Question 23

In ruminants and swines, the body of penis is folded upon itself forming S-shaped flexure called ……….

Answer 23

sigmoid flexure

Question 24

The position of the sigmoid flexure is ………..in swines and ……….in ruminants.

Answer 24

prescrotal

postscrotal

Question 25

The two corpora cavernosa are separated by the ……….., which is a thin fibrous structure. It is intact in carnivores and interrupted in the other species.

Answer 25

penile septum

Question 26

The muscles of both sides ( M. retractor penis ) meet under the anus forming the …………. and continue on the urethral surface of the penis.

Answer 26

suspensory ligament of the anus

Question 27

The arterial supply of the penis is derived form the internal pudendal artery ………, internal and external pudendal arteries in …….. and the two pudendal arteries in addition to the oburator artery in……….

Answer 27

in ruminants and swines
carnivores
equines