penis and prepuce

Question 1

in cats, what position is the scrotum in?

Answer 1

perenial region

Question 2

in dogs, what position is the scrotum in?

Answer 2

intermediate position

Question 3

ischiocavernos muscle anchors

Answer 3

penis to ischiatic tuberosity

Question 4

what is the erectile tissue found in the bulbs glandis?

Answer 4

corpus spongiosum glandis of bulbous glandis

Question 5

what is the erectile tissue found in the pars longa glandis?

Answer 5

corpus spongiosum glandis of the pars longa glandis

Question 6

contraction of what muscles causes blood to flow to erectile tissues?

Answer 6

bulbospongiosus m. and ishiocavernosus m.

Question 7

tunica albuginea is a layer of fibrous connective tissue that surrounds what

Answer 7

corpus cavernous erectile tissue

Question 8

crura of the penis are composed of

Answer 8

corpus cavernous penis surrounded by tunic albuginea

Question 9

what muscle is each crus covered by

Answer 9

ishiocavernosus muscle

Question 10

bulb of the penis is an expansion of what erectile tissue

Answer 10

corpus spongiosum penis

Question 11

the bulb of the penis is covered caudally by what muscle

Answer 11

bulbospongiosus m.

Question 12

what are the 2 parts of the glans penis?

Answer 12

bulbus glandis

pars longis glandis

Question 13

differences in feline penis

Answer 13

apex is directed caudoventrally
small os penis
small glans penis called free part
keratinized spines

Question 14

what is the primary source of blood to the penis

Answer 14

internal pudendal a.

Question 15

what does the dorsal a. of the penis supply

Answer 15

the prepuce, superficial surface of the penis, and pars longa glandis

Question 16

main blood supply to bladder

Answer 16

caudal vesical

Question 17

there is no direct blood supply to bulbous glandis, blood from where supplies bulbous glandis

Answer 17

pars longa glandis

Question 18

several veins drain blood from the penis, these veins drain into the

Answer 18

internal and external pudendal v.

Question 19

right and left dorsal v. of the penis join for a short distance at the ischial arch before diverging again and draining into

Answer 19

right and left internal pudendal v.

Question 20

internal and external iliac v. join to form

Answer 20

common iliac v.

Question 21

right and left common iliac veins join to form

Answer 21

the caudal vena cava

Question 22

lymphatic vessels from the penis course to the

Answer 22

superficial inguinal lymph nodes

Question 23

efferent vessels from the superficial inguinal lymph node course through the inguinal canal to the

Answer 23

medial iliac lnn.

Question 24

what is the perennial reflex test

Answer 24

touch the perineal area and the external anal sphincter should contract. if there is no contraction there could be damage to the sacral spinal nerves and/or pudendal n.

Question 25

what nerves are the perennial reflex test checking?

Answer 25

sacral spinal nerves and pudendal n.

Question 26

what is the main sensory nerve of the glans penis?

Answer 26

the dorsal nerve of the penis

Question 27

what happens during non erection

Answer 27

blood flow to the penis bypasses the vascular space of the erectile tissue

Question 28

during erection, are helicine arteries relaxed or coiled?

Answer 28

relaxed

Question 29

what happens during erection?

Answer 29

parasympathetic stimulation of pelvic n. causes relaxation of helicine arteries and allows vascular spaces of erectile tissue to fill with blood and peripheral veins are compressed preventing venous return

Question 30

name 2 ways to maintain erection

Answer 30

ischial arch in the male compresses dorsal veins of the penis
penis bend son long axis during dismount and tie and restricts venous return

Question 31

phimosis

Answer 31

narrowing of the preputial orifice, penis is unable to protrude from prepuce

Question 32

paraphimosis

Answer 32

extended penis is unable to be withdrawn back into prepuce

tx: put it back and suture it