Anatomy: Male Repro Flashcards
in the male the vaginal process surround the __ while in the female dog it surrounds the __
spermatic cord, round ligament of the uterus
what structure guides and pulles the testis and epididymis out of the abdomen through the inguinal canal into the scrotum
gubernaculum
in the male, what are the 3 remnants of the gubernaculum ?
- proper ligament of the testes
- ligament of the tail of the epididymis
- scrotal ligament
cryptorchids retained testicle produces testosterone, has __ sperm and is prone to __ making __ an ethical treatment
no viable sperm
neoplasia
castration
what is the outermost layer of the scrotum?
skin and tunica dartos
describe the scrotal septum
a median internal partition dividing the scrotum into 2 separate chambers that contain all layers except the skin
__ is the outer thick white connective tissue of the testes while __ is a cord of connective tissue in the center of the testes from cr to caudal ends. The __ is a network of tubules within the mediastinum testis that transfer the spermatozoa from the seminiferous tubules to the epididymis.
tunica albuginea
mediastinum testis
rete testis
what is the blood supply to the testis?
testicular a and v (tortuous - pampiniform plexus)
the left testicular vein drains into the left __ while the right testicular vein drains into the __
renal vein, caudal vena cava
the epididymis is __ to the testis
DORSOLATERAL
the ductus deferens passes cranially along the __ border of the testes
DORSOMEDIAL
ductus deferens course
- runs dorsally in the spermatic cord -> inguinal canal -> abdomen
- courses cranially and loops ventral to the ureter at the lateral ligament of the bladder
- penetrates the prostate to open into the pelvic urethra lateral to the colliculus seminalis
the ampulla DD which is a thickening in the wall of ductus deferens at its terminal part is absent in what?
tomcat
when are bulbourethral glands an important landmark?
perineal urethrostomy
what is within the spermatic cord?
- testicular vessels, nerves, lymphatics
- ductus deferens and associated vessels, nerves lymphatics
- visceral vaginal tunic
- pampiniform plexus
mesenteries of the spermatic cord
mesorchium: testis v and n
mesoductus deferens: ductus deferens a, v and n
in the cats the right and left lobes of the prostate __ventral to the urethra
don’t join
the prostate glands gets symp and parasymp innervation from the __
pelvic plexus
what type of muscle predominates in the penis?
cavernous, less connective tissue
3 parts of the penis
root, body, glans
the bulb of the penis is made up of ___ tissue that enlarges between the 2 crura and is covered by the median___ m
corpus spongiosum, bulbospongiosus m.
each crus of the penis consists of __ covered by __ and __
corpus cavernosum penis, tunica albuginea and ischiocavernosus m.
the glans penis replaces CCP with __
the Os Penis
CSP surrounds __, CSG surrounds __ and CCP makes up the __ and __
penile urethra
os penis
crura and body
bulbus glandis
cavernous expansion of the corpus spongiosum -> forming corpus spongiosum glandis
tie and lock
pars longa glandis
apex of the penis that contains CSG
the os penis supports the ___ glans penis and in carnivores the CCP is replaced within the penile glans by the os penis
ENTIRE
what are the 4 extrinsic muscles of the penis?
retractor penis
ischiocavernosus
bulbospongiosus
ischiourethralis
the penis is innervated by __ and __ for ejaculation and __ for erection
hypogastric and pudendal nerves
pelvic n for erection
what is the main artery of the penis that branches from the internal pudendal? what structures does it supply?
dorsal artery, it supplies the pars longa glandis + the os penis + part of the preputial wall
t/f: the feline male tract has 2 accessory sex glands
T, prostate and bulbourethral glands
t/f: the os penis is less developed with no urethral groove in tomcats
T
