Male Repro

Question 1

What are the male animal’s gonads that produce gametes?

Answer 1

Testes

Question 2

Where do testis begin development?

Answer 2

In cranial abdominal cavity

Question 3

Through which structure do testis descend?

Answer 3

Inguinal canal

Question 4

What covers the testes along with its related structures as they descend ?

Answer 4

Visceral serosal layer

Question 5

What is the name of the visceral and parietal layers that cover the testes once in the scrotum?

Answer 5

Vaginal tunic

Question 6

What is the deeper layer of the testes?

Answer 6

Tunica albuginea testis

Question 7

Which structure is attached to the testis and is the maturation site for spermatozoa?

Answer 7

Epidydimis

Question 8

List the 3 parts the make up the epidydimis

Answer 8

• head
• body
• tail

Question 9

What carries mature spermatozoa to urethra?

Answer 9

Ductus deferens

Question 10

Where does the ductus deferens meet the pelvic urethra?

Answer 10

At the level of the prostate in the dog

Question 11

Describe a closed castration

Answer 11

Scrotum incised
Ligate vessels
On parietal vaginal tunic

Question 12

Describe an open castration

Answer 12

Scrotum incised
Open parietal vaginal tunic
Ligate vessels on visceral vaginal tunic

Question 13

What are 3 ways of temperature regulation of the testicle?

Answer 13

• Pampiniform plexus
• tunica dartos mm
• Cremaster mm

Question 14

Define the pampiniform plexus

Answer 14

Venous plexus surrounding testicular artery that cools the arterial blood arriving to testicle

Question 15

Which muscle runs along spermatic cord and raises and lowers the testicle?

Answer 15

Cremaster muscle

Question 16

Describe the origin and insertion of the cremaster muscle

Answer 16

-Originates from the internal abdominal oblique
-Inserts on the vaginal tunic

Question 17

What is the musculature of the scrotum?

Answer 17

Tunica dartos

Question 18

What is the term used for a retained testicle?

Answer 18

Cryptorchidism

Question 19

Where can a testicle be retained if it is undescended?

Answer 19

In the inguinal canal or in the body (not adhered to anything)

Question 20

What is the mesentery of the testicular vessels and nerves?

Answer 20

Mesorchium

Question 21

Define the mesoductus deferens

Answer 21

Mesentery of the ductus deferens

Question 22

The mesentery spanning between the 2 ductus deferentia as they course towards urethra: ________________

Answer 22

Genital fold

Question 23

List the structures associated with the spermatic cord

Answer 23

• testicular artery
• testicular vein
• nervous/lymphatic supply
• mesorchium
• ductus deferens + its mesentery

Question 24

What is the structure that anchors the testis to the tail of the epidydimis?

Answer 24

Proper ligament of the testis

Question 25

What is the function of the ligament of the tail of the epidydimis?

Answer 25

Anchor the epidydimis to the scrotum

Question 26

Describe the reproductive pathway of the canine genitourinary tract

Answer 26

Testis to epidydimis to ductus deferens to prostatic/ pelvic urethra to penile urethra to external urethral orifice

Question 27

In mammals, what anchors the penis to the ischium and formed by it when jointing the urethra at level of ischial arch?

Answer 27

Left and right crura

Question 28

Where do the crura and urethra join, that has a distinct bulb?

Answer 28

Root???

Question 29

What is the continuation of the penis dismally from the root????

Answer 29

The body

Question 30

Distally to the root, the ______________ is the distal free end.

Answer 30

Glans penis

Question 31

Define the external urethral orifice

Answer 31

The external opening of the penis

Question 32

Which muscle runs on the ventral aspect of the body and glans of the penis?

Answer 32

Retractor penis muscle

Question 33

Which muscle covers the origin of the crus and inserting on it distally?

Answer 33

Ischiocavernosus muscle

Question 34

Describe the muscle covering of the bulb of the penis

Answer 34

Bulbuspongiosus muscle

Question 35

Name the fibrous architecture of the penis

Answer 35

Tunica albuginea penis

Question 36

What are the 2 erectile tissue types of the penis?

Answer 36

Corpus cavernosum and spongiosum

Question 37

Which type of erectile tissue is bilateral and dorsal?

Answer 37

Corpus carvenosum

Question 38

Which erectile tissue surrounds the urethra?

Answer 38

Corpus spongiosum

Question 39

Which erectile tissue originates at the crura of penis?

Answer 39

Corpus cavernosum

Question 40

The erectile tissue that originates from the bulb of the penis is the?

Answer 40

C. Spongiosum

Question 41

Because the canine penis contains high percentage of erectile tissue vs architecture, it is considered:

Answer 41

Musculocavernous

Question 42

The two regions of the glans are:

Answer 42

- bulbous glands - longa glandis

Question 43

What is the more proximal part of the glans that is composed of corpus spongiosum?

Answer 43

Bulbous glandis

Question 44

Define the longa glandis

Answer 44

The elongated distal end of the glans

Question 45

The ___________ will be present in the glans penis, with a centrally oriented urethral groove

Answer 45

Os penis?

Question 46

Where is the most common for a urolith obstruction?

Answer 46

Os penis?

Question 47

Where does the penis extend through when erect ?

Answer 47

Preputial orifice

Question 48

What is the inner layer of the prepuce composed of?

Answer 48

Mucous membranes

Question 49

What does the prostate do?

Answer 49

Secretes fluid for semen

Question 50

Describe the location and shape of the prostate

Answer 50

It is a bilobed structure with a dorsally located indentation. It surrounds the neck of the bladder and proximal urethra

Question 51

What are some common disorders with intact males?

Answer 51

Prostatic neoplasia ; benign prostate hyperplasia

Question 52

List the 4 pouches of the pelvic cavity

Answer 52

- pararectal fossa - rectogenital pouch - genitovesical pouch - Pubovesical pouch

Question 53

What is something that can occur in the pouches?

Answer 53

Hernias

Question 54

List what makes up the spermatic cord

Answer 54

- Testicular artery - testicular vein - Ductus deferens