Male Genital Tract

Question 1

Clinical Significance of male reproductive system

Answer 1

• cryptochidism
• herniation
• castration

Question 2

How to differentiate between scrotal and abdominal herniation

Answer 2

• abdominal: herniation in abdomen
• scrotal: in scrotum

Question 3

Other names for abdominal vs. inguinal herniation

Answer 3

• high flanker (abdominal)
• low flanker (inguinal)

Question 4

List the 7 structures of male genital tract

Answer 4

1) scrotum

2) testes

3) epididymis

4) spermatic cord

5) accessory glands

6) penis

7) prepuce

Question 5

Name the layers of the scrotum from outer to inner

Answer 5

• skin
• tunica dartos
• scrotal fascia
• tunica vaginalis
• tunica albuginea

Question 6

What is the median raphe and its significance

Answer 6

• structure that divides L and R testicles
• must make incisions during castrations lateral to this line

Question 7

Testis must be ___ to ____ degrees Celsius below body temp

Answer 7

3-5

Question 8

What structures assist in the thermoregulation of the testes

Answer 8

• tunica dartos
• cremaster muscle
• sweat glands
• pampiniform plexus

Question 9

Function of sertoli cells

Answer 9

Provide nutrition for sperm prod.

Question 10

Function of leydig cells

Answer 10

Hormone secretion during sperm production

Question 11

Which breeds are predisposed to cryptorchidism

Answer 11

QH and SB

Question 12

Legal issues regarding castrations/cryptorchidism

Answer 12

• must feel testicles before removing
• illegal to leave testicle in body
• show tissue to client

Question 13

3 ways to fix cryptorchidism

Answer 13

1) laparotomy

2) flank incision

3) ————-

Question 14

Difference between open and closed castrations

Answer 14

• open: cut tunica vaginalis open & milk contents out
• closed: tunica vaginalis stays closed

Question 15

Contents of spermatic cord

Answer 15

• ductus deferens ( vessels, nerves, lymphatics)
• testicular ( vessels, nerves, lymphatics)
• peritoneum (tunica vaginalis)
• cremaster muscle

Question 16

Inguinal structures of males

Answer 16

• spermatic cord
• genitofemoral n.
• external pudendal a.
• lymphatic

Question 17

Inguinal structures of females

Answer 17

• artery
• nerve
• lymphatic

Question 18

Abdominal edemas are assc. w/

Answer 18

Closed castration

Question 19

Differential dx for abdominal edemas

Answer 19

• heaves
• anterior enteritis

Question 20

Omental hernias assc. w/

Answer 20

Open castrations b/c abdominal cavity is opened

Question 21

Intestinal hernias assc. w/ open castrations b/c

Answer 21

Abdominal cavity is opened

Question 22

Clin sig of testicular a.

Answer 22

If lateral branch of this artery is present, then breeding soundness decreases

Question 23

4 functions of the epididymis

Answer 23

• transport sperm from testis to ductus deferens
• sperm maturity
• concentration of testicular fluid
• sperm protection

Question 24

4 accessory glands of male

Answer 24

• ampulla of deferens duct
• vesicular gland
• bulbourethral gland
• body of prostate

Question 25

Function of ischiocavernous muscle

Answer 25

Attaches penis to pelvis

Question 26

Function of the ampulla of the ductus deferens

Answer 26

Sperm storage

Question 27

Function of vesicular gland

Answer 27

Seminal vesicles

Question 28

Function of prostate

Answer 28

Alkaline secretions/pre-ejaculate

Question 29

Function of bulbourethral

Answer 29

Seminal fluid

Question 30

3 parts of the penis

Answer 30

Glans, body, root

Question 31

Penis contains _______ _______ _______ plexus

Answer 31

External pudendal venous

Question 32

List parts of the penis from dorsal to ventral

Answer 32

-ischiocavernosus m.

• tunica albuginea
• corpus cavernosum
• corpus spongiosum
• urethra
• bulbospongiosus
• retractor penis

Question 33

Clin sig of the fossa of the glans penis

Answer 33

• contains smegma ( can affect urination, must be cleaned on a regular basis)

Question 34

List the clinical conditions of the penis

Answer 34

• preputial edema
• paraphimosis
• tumors
• frost bites
• laceration

Question 35

How to treat penile frostbites

Answer 35

1) penile amputation

2) urethrostomy ( cut 10 cm ventral to pelvic floor; catheterize)