Male Repro

Question 1

testes descent

Answer 1

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

Question 2

epididymis

Answer 2

storage for sperm
has 3 portions: head, body tail

Question 3

testicle

Answer 3

male gonad
produce spermatozoids and hormones

Question 4

tunica albuginea

Answer 4

white c.t surrounding testes

Question 5

proper lig of the testis

Answer 5

connect tail of epididymis to testes

Question 6

lig of the tail of the epididymis

Answer 6

connect tail of epididymis to fascia

Question 7

scrotum layers

Answer 7

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

Question 8

tunica dartos

Answer 8

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

Question 9

parietal vaginal tunic
?? check

Answer 9

on outside passageway toward scrotum

Question 10

visceral vaginal tunic
?? check

Answer 10

along spermatic cord and wraps around

Question 11

CT that anchors the testes

Answer 11

mesorchium
mesofuniculum
mesoductusdeferens

Question 12

cremaster muscle

Answer 12

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

Question 13

spermatic cord components

Answer 13

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

Question 14

accessory sex glands

Answer 14

prostate and ampullary glands

Question 15

function of accessory sex glands

Answer 15

-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

Question 16

erectile tissue of penis

Answer 16

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

Question 17

crura

Answer 17

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

Question 18

bulb of penis

Answer 18

expansion of corpus spongiosum penis
surrounded by bulbospongiosus m

Question 19

bulbospongiosus m

Answer 19

around bulb of penis

Question 20

ischiocavernosus m

Answer 20

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

Question 21

retractor penis m

Answer 21

from external anal sphincter to gland, caudal and ventral position

Question 22

corpus cavernosum

Answer 22

surrounded by tunica albuginea

Question 23

urethra

Answer 23

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

Question 24

corpus spongiosum

Answer 24

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

Question 25

bulbus glandis

Answer 25

corpus spongiosum glandis swelling of distal end of penis

Question 26

pars longa glandis

Answer 26

corpus spongiosum glandis most distal end of penis

Question 27

os penis

Answer 27

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

Question 28

canine prepuce

Answer 28

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

Question 29

non-erect penis bloodflow

Answer 29

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

Question 30

erect penis bloodflow

Answer 30

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

Question 31

erection

Answer 31

parasympathetic function

Question 32

preputial orifice

Answer 32

compresses dorsal veins of penis

Question 33

ischial arch

Answer 33

compresses dorsal veins of penis

Question 34

ischiourethralis m

Answer 34

restrict venous return

Question 35

constrictor vulvae and vestibuli mm

Answer 35

inhibits venous return

Question 36

ejaculation

Answer 36

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

Question 37

scrotum in cat

Answer 37

in perineal position compared to dogs where it is inguinal position

Question 38

scrotal covering in cat

Answer 38

covered in hair, whereas dogs scrotum has little hair

Question 39

feline penis

Answer 39

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