penis and prepuce Flashcards

1
Q

in cats, what position is the scrotum in?

A

perenial region

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2
Q

in dogs, what position is the scrotum in?

A

intermediate position

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3
Q

ischiocavernos muscle anchors

A

penis to ischiatic tuberosity

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4
Q

what is the erectile tissue found in the bulbs glandis?

A

corpus spongiosum glandis of bulbous glandis

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5
Q

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

A

corpus spongiosum glandis of the pars longa glandis

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6
Q

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

A

bulbospongiosus m. and ishiocavernosus m.

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7
Q

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

A

corpus cavernous erectile tissue

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8
Q

crura of the penis are composed of

A

corpus cavernous penis surrounded by tunic albuginea

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9
Q

what muscle is each crus covered by

A

ishiocavernosus muscle

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10
Q

bulb of the penis is an expansion of what erectile tissue

A

corpus spongiosum penis

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11
Q

the bulb of the penis is covered caudally by what muscle

A

bulbospongiosus m.

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12
Q

what are the 2 parts of the glans penis?

A

bulbus glandis

pars longis glandis

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13
Q

differences in feline penis

A

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

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14
Q

what is the primary source of blood to the penis

A

internal pudendal a.

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15
Q

what does the dorsal a. of the penis supply

A

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

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16
Q

main blood supply to bladder

A

caudal vesical

17
Q

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

A

pars longa glandis

18
Q

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

A

internal and external pudendal v.

19
Q

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

A

right and left internal pudendal v.

20
Q

internal and external iliac v. join to form

A

common iliac v.

21
Q

right and left common iliac veins join to form

A

the caudal vena cava

22
Q

lymphatic vessels from the penis course to the

A

superficial inguinal lymph nodes

23
Q

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

A

medial iliac lnn.

24
Q

what is the perennial reflex test

A

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.

25
what nerves are the perennial reflex test checking?
sacral spinal nerves and pudendal n.
26
what is the main sensory nerve of the glans penis?
the dorsal nerve of the penis
27
what happens during non erection
blood flow to the penis bypasses the vascular space of the erectile tissue
28
during erection, are helicine arteries relaxed or coiled?
relaxed
29
what happens during erection?
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
30
name 2 ways to maintain erection
ischial arch in the male compresses dorsal veins of the penis penis bend son long axis during dismount and tie and restricts venous return
31
phimosis
narrowing of the preputial orifice, penis is unable to protrude from prepuce
32
paraphimosis
extended penis is unable to be withdrawn back into prepuce | tx: put it back and suture it