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Anatomy Exam 3 > Male Repro > Flashcards

Male Repro Flashcards

1
Q

testes descent

A

as testis descend from peritoneal cavity into scrotum, inguinal canal will allow for passage

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2
Q

epididymis

A

storage for sperm
has 3 portions: head, body tail

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3
Q

testicle

A

male gonad
produce spermatozoids and hormones

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4
Q

tunica albuginea

A

white c.t surrounding testes

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5
Q

proper lig of the testis

A

connect tail of epididymis to testes

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6
Q

lig of the tail of the epididymis

A

connect tail of epididymis to fascia

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7
Q

scrotum layers

A

skin (epidermis and dermis)
tunica dartos
external spermatic fascia
internal spermatic fascia
parietal vaginal tunic

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8
Q

tunica dartos

A

subQ tissue, form the scrotal septum
help to regulate internal temp according to the external temp

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9
Q

parietal vaginal tunic
?? check

A

on outside passageway toward scrotum

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10
Q

visceral vaginal tunic
?? check

A

along spermatic cord and wraps around

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11
Q

CT that anchors the testes

A

mesorchium
mesofuniculum
mesoductusdeferens

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12
Q

cremaster muscle

A

originates from caudal free border of internal abdominal oblique m
inserts spermatic fascia and parietal vaginal tunic
acts to pull testis closer to body as reflex
innervated by genitofemoral n

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13
Q

spermatic cord components

A

testicular a
testicular v and pampiniform plexus
testicular n
testicular lymphatics
ductus deferens
deferent a and v
internal cremaster m

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14
Q

accessory sex glands

A

prostate and ampullary glands

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15
Q

function of accessory sex glands

A

-add volume to ejaculate to provide vehicle for sperm
-give sperm source of energy
-acts as buffer for sperm by neutralizing pH in urine and CO2 produced by sperm
-produce prostaglandins that cause smooth muscle contraction of female repro tract

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16
Q

erectile tissue of penis

A

dense collagenous tissue with many elastic fibers and sinuses
-corpus carvenosum penis
-corpus spngiosum penis
-corpus spongiosium glandis bulbus
-corpus spongiosum glandis pars longus

17
Q

crura

A

composed of corpus cavernosum penis and tunica albuguinea
surrounded by ischiocavernosus m

18
Q

bulb of penis

A

expansion of corpus spongiosum penis
surrounded by bulbospongiosus m

19
Q

bulbospongiosus m

A

around bulb of penis

20
Q

ischiocavernosus m

A

from ischiatic tuberosities to crura (right and left) of the penis

21
Q

retractor penis m

A

from external anal sphincter to gland, caudal and ventral position

22
Q

corpus cavernosum

A

surrounded by tunica albuginea

23
Q

urethra

A

pelvic portion surrounded by urethralis m, penile portion surrounded by corpus spongiosum

24
Q

corpus spongiosum

A

in the root of the penis, this forms the bulb of the penis

25
Q

bulbus glandis

A

corpus spongiosum glandis
swelling of distal end of penis

26
Q

pars longa glandis

A

corpus spongiosum glandis
most distal end of penis

27
Q

os penis

A

around penile urethra
adds rigidity for intromission
deforms apex of penis in vagina
urethra passes through urethral groove on ventral surface

28
Q

canine prepuce

A

tissue around glans penis
-external lamina
-internal lamina
-penile lamina
preputial orifice (ostium)
preputial fornix (fundus)

29
Q

non-erect penis bloodflow

A

bypasses vascular spaces of erectile tissue
vascular spaces of erectile tissue only contain a small amt blood

30
Q

erect penis bloodflow

A

results from filling cavernous bodies w blood
stimulation of pelvic nerve causes relaxation of smooth mm of arteries of penis allowing an increase blood flow to penis
penis enlarges and becomes turgid, blood directed into helical arteries

31
Q

erection

A

parasympathetic function

32
Q

preputial orifice

A

compresses dorsal veins of penis

33
Q

ischial arch

A

compresses dorsal veins of penis

34
Q

ischiourethralis m

A

restrict venous return

35
Q

constrictor vulvae and vestibuli mm

A

inhibits venous return

36
Q

ejaculation

A

secretion of accessory sex glands, SYMPATHETIC function
bulbospongiosus m contracts causing expulsion of semen
-somatic function

37
Q

scrotum in cat

A

in perineal position compared to dogs where it is inguinal position

38
Q

scrotal covering in cat

A

covered in hair, whereas dogs scrotum has little hair

39
Q

feline penis

A

smal glans penis with keratinized spines
stimulation of vagina results in ovulation= induced ovulators

Anatomy Exam 3 (9 decks)

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