male reproductive system (urogenital) Flashcards
list the components of the male reproductive system
testes
ductus deferens
accessory sex glands
urethra
penis
what is the term for male gonads
testes
The testes develop in
the abdomen and descend into the _____ through the ___________
scrotum
inguinal canal
what is the term for when testes remain completely in the abdomen in species like the elephant?
testiconda
what is the shape of testes?
ellipsoidal
describe the orientation of testes in stallions
long axis of testes is parallel to body axis
describe the orientation of testes in ruminants
long axis of testes is perpendicular to body axis
what is the term for when one testis fails to descend?
monorchid
what is the term for when both testes fail to descend?
cryptorchid
what is the thick capsule of connective tissue that covers the testes?
tunica albuginea
what does the testicular tissue consist of?
seminiferous tubules and interstitial tissue
what space does semen drain into?
rete testis
what drains the rete testis and pierce through the capsule to join the head of the epididymis?
efferent tubules
what are the three parts of the epididymis?
head
body
tail
how is the tail of the epididymis attached?
proper ligament of the testis
what does the tail of the epididymis continue as?
ductus deferens
true or false: the ductus deferens is not considered to be part of the spermatic cord
false
At the level of the deep inguinal ring, the deferent duct deviates from the rest of the contents of the spermatic cord and runs caudally above the bladder and pierces through the ___________ to enter the urethra
prostate gland
The contents of the spermatic cord are wrapped by peritoneal process known as ______________
vaginal tunic
what are the four accessory sex glands of the male reproductive system?
ampulla
vesicular gland
prostate gland
bulbourethral gland
before the deferens duct enters the urethra, what is the significant enlargement of the duct caused by?
ampulla
what species are vesicular glands not found in?
dogs and cats
true or false: the prostate gland is found in all domestic species
true
the prostate can appear in what two parts of some species?
diffused and compact
what species is the bulbourethral gland not present in?
dogs
cats -> sometimes remnants are present
what are the two parts of the male urethra?
pelvic part
penile part
what muscle covers the male urethra?
urethralis muscle
which part of the urethra does the deferent ducts and ducts of accessory glands enter?
pelvic part
what sheath is the penis kept hidden by?
prepuce
where does the body of the penis arise from?
ischial arch
what is the penile tissue called?
corpus cavernosum
The urethra is located on the ventral aspect of the penis and is surrounded by the ______________
corpus spongiosum
what is the part of the penis called where the corpus cavernosum expands towards the tip?
glans
what type of penis do dogs and cats have?
os penis
what three muscles support the penis?
ischiocavernosus
bulbospongiosus
retractor penis
where does blood supply to the penis come from?
artery of penis
The parasympathetic fibers from the __________ innervate the penis.
pelvic nerve
