Avian Male anatomy

Question 1

what is the functions of the scrotum

Answer 1

-protects and supports the testes

Question 2

_____-dual chambered pouch

Answer 2

scrotum

Question 3

what does each half of the scrotum contain

Answer 3

-testis, epididymis, distal spermaticord

Question 4

epididymis:

Answer 4

• Head, body, tail

- maturation annd storage of spermatoza

Question 5

Spermaticord: is made up of

Answer 5

composed of ductus deferens, testicular VAN, and mesoductus deferens+mesorchium

Question 6

what are the layers of the scrotum

Answer 6

• Outer skin with tunica dartos m.
• spermatic fascia
• vaginal tunic

Question 7

what layers make up the vaginal tunic

Answer 7

• parietal

- visceral-vaginal cavity

Question 8

what is the blood supply to the scrotum

Answer 8

-External pudendal A

Question 9

what muscle becomes the cremaster M.

Answer 9

-the caudal slip of the internal abdominal oblique M.

Question 10

what it the main function of the Cremaster M

Answer 10

-pull testis closer to body

Question 11

what is the function of the testicular vein

Answer 11

thermoregulation

Question 12

what are the layers surrounding the testis

Answer 12

• inner most: tunica albuginea
• visceral vaginal tunic
• Outer: parietal vaginal tunic

Question 13

What is the decent

Answer 13

the migration of the testies from near the kidneys to the scrotum

Question 14

what is phase 1 of descent

Answer 14

Extra-abdominal gubernaculum increases in size and dilates the inguinal canal to allow the testis to pass through

Question 15

what is phase 2 of descent

Answer 15

The gubernaculum regresses and makes room for the testis

Question 16

Cryptorchidism

Answer 16

• hidden testicle

- when one or both testes did not descend and are retained in the abdominal cavity/inguinal canal

Question 17

What makes an open castration “open”

Answer 17

• when it goes through the parietal vaginal tunic

- this opens the vaginal cavity to the abdomen

Question 18

what makes a closed castration “closed”

Answer 18

• when the castration only goes through fascia and not the parietal vaginal tunic
• this does not expose vaginal cavity to open air.

Question 19

Function of the proper ligament of the testis

Answer 19

attaches the testis to the epididymis

Question 20

what is the function of the ‘ligament of the tail of the epididymis’

Answer 20

• attaches the tail of the epididymis to the layers of the vaginal tunic

Question 21

Scrotal ligament function

Answer 21

-attaches the tail of the scrotum to the tunica dartos m

Question 22

function of the ductus deferens

Answer 22

transport sperm from tail to urethra

Question 23

where does the ductus deferens open into the urethra

Answer 23

Colliculus seminalis

Question 24

what is the genital fold

Answer 24

-peritoneal fold between each ductus deferens

Question 25

what is the path taken by the ductus deferens

Answer 25

- from the tail of the epididymis - under the lateral ligament of the urinary bladder as it runs dorsal - to the pelvic urethra

Question 26

what are the types of penises

Answer 26

- Musculocavernous | - Fibroelastic

Question 27

what type of penis do stallion, dog, humans, and cats have

Answer 27

Musculocavernous

Question 28

what type of penis do bull, boars, ram have

Answer 28

fibroelastic

Question 29

which type of penis has a sigmoid flexure

Answer 29

fibroelastic

Question 30

what is the characteristics of the erectile tissue of the fibroelastic penis

Answer 30

-there is little amount of erectile tissue

Question 31

what is the characteristics of the the erectile tissue in the musculocavernous penis

Answer 31

there is a large amount of erectile tissue

Question 32

how does a penis achieve an erection

Answer 32

-via relaxation of the retractor penis muscle and the erectile tissue filling with blood

Question 33

what are the types of erectile tissue

Answer 33

- Corpus cavernosum | - corpus spongiosum

Question 34

what is located within the corpus spongiosum

Answer 34

the corpus spongiosum surrounds the penile urethra and cd pelvic urethra

Question 35

what are the parts of the penis

Answer 35

-Roots, Body, Glans

Question 36

Root of the penis is made of

Answer 36

- 2 cura - bulb - m.s

Question 37

what is the body of the penis

Answer 37

the intermediate between the root and glans

Question 38

where is the glans penis and what is it made of

Answer 38

- the most distal part | - Bulbous glandis, Pars longa glandis, Os penis

Question 39

where is the crus of the penis located

Answer 39

proximal end of the corpus cavernosum

Question 40

what is the function of the crus of the penis

Answer 40

anchors the penis at the ischiatic arch

Question 41

what covers the crus of the penis

Answer 41

the crus is covered by the ischiocavernousus m.

Question 42

where is the bulb of the penis located

Answer 42

between two crura

Question 43

what is the bulb of the penis covered by

Answer 43

the bulb of the penis is covered by bulbospongiosus m.

Question 44

where is the ischiocavernosus m

Answer 44

near the root of the penis

Question 45

where is the bulbospongiosus

Answer 45

-it overlaps with the bulb of the penis