Class 1 - Station 4 Flashcards
male internal preproductive organs
testes, epididymis, vas deferens, seminal glands, prostate and bulbourethral glands
how do the ureters relate to the vas deferens anatomically
ureters pass under the vas deferens
purpose of testes being outside the body
temperature regulation
which opening of the inguinal canal is most superior
deep inguinal ring
layers of muscle and fascia from outside to in that surround the testes
skin, subcutaneous tissue, external spermatic fascia, cremaster muscle, internal spermatic fascia
contents of spermatic cord
vas deferens, genital branch of genito-femoral nerve and blood vessels (testicular artery and pampiniform plexus
action of cremaster muscle
raise and lower the scrotum
tough outer fibrous layer of testis
tunica abuginea
peritoneal sac surrounding the testis
tunica vaginalis
two layers of tunica vaginalis
parietal and visceral
what is hydrocele
fluid in the tunica vaginalis
blood supply of testes
testicular arteries
origin of testicular arteries
come off the abdominal aorta at L2
what two structures do the testicular arteries cross before entering the inguinal canal
ureters and externa iliac artery
venous drainage of hte testes
pampiniform plexus
function of pampiniform plexus
to thermoregulate the testes
right testicular vein drains into the ______
IVC
left testicular vein drains into the _______
left rena vein
what is varicocele
when the pampiniform plexus becomes varicose (bag of worms)
lympatic drainage of the testes
lumbar and para-aortic nodes
lymphatic drainage of scrotum
superficial inguinal lymph nodes –> external iliac lymph nodes
when the vas deferens joins the seminal gland it becomes the _________
ejaculatory duct
how much of semen comes from seminal vesicles
65-75% of this alkaline fluid
how much of semen comes from the prostate gland
15-30% of prostatic fluid
how much of semen comes from the bulbourethral glands
<1% of semen
what is the function of bulbourethral gland secretion
to lubricate the urethra
lymphatic drainage of male organs
prostate –> internal iliac and sacral
seminal vesicle –> sup to external and inf to internal
scrotum –> superficial inguinal
penis –> skin to superficial, glans and distal spongy to deep inguinal and external, carvenous and proximal spongy to internal