Flashcards in pelvis- internal genitalia Deck (72)
which testicle lies lower?
what do the visceral and parietal layers of the tunica vaginalis cover?
Visceral covers epididymis & testicle
Parietal lines internal spermatic fascia
what two structures is the epididymis continuous with?
Continuous with rete testis (via mediastinum) & ductus deferens
what is the firm muscular continuation of the epididymis?
what does the ductus defrens pass anteromedially to?
ureter, to merge with seminal vesicle
what path does the ductus defrens take come from the testes, through the inguinal canal and out of the deep ring? (where does it go from here?)
Crosses external iliac vessels to enter pelvis
Passes along lateral pelvic wall deep to peritoneum
where does the vas defrens get its blood supply from?
branches from superior vesicle artery (forms ductus defrens artery)
branches from inferior vesicle artery (more to lower- ejac duct area)
what covers the superior end of seminal vesicle?
by peritoneum of ureteric fold
where do the seminal glands/vesicles get there blood supply from?
Supplied by branches of inferior vesical arteries & middle rectal arteries
what is the path of the ejac ducts?
formed from vas defrens and seminal gland duct
Pass anteroinferior to enter prostate
Open into urethra via apertures on seminal colliculus
what type of fluid does the prostate secrete?
Contributes alkaline, milky fluid to semen
the superior base of the prostate contacts what? what about it's inferior apex?
Superior base contacts bladder neck
Inferior apex contacts external urethral sphincter
what are the anterior and posterior surfaces of the prostate in contact with?
Anterior surface separated from pubic symphysis by retropubic (prevesical) space
Posterior surface contacts rectal ampulla
what portion of the prostate is palpable on exam?
inferior portion of posterior lobe
*BPH is most commonly here
what are the 5 different lobes of the prostate?
- anterior/isthmus lobe
- middle lobe
-right lateral lobe
-left lateral lobe
what was the prostate historically divided into? what is the prostate currently divided into?
old- 5 " lobes"
now- 4 " zones"
which lobe has no glandular tissue (mostly muscular) AND has the prostatic commissure?
anterior lobe (isthmus)
what are the boundaries of the middle prostate lobe?
between urethra and ejac ducts
what is the posterior prostate lobe behind?
what separates the right and left lateral prostate lobes?
"furrow" - slight indentation
what are the 4 "zones" that prostate is now divided into? (kinda weeds)
anterior, intermediate, central (includes "posterior lobe"), peripheral (lateral lobes)
how many prostatic ducts are there? where do they open into?
20-30 prostatic ducts open into prostatic sinuses of urethra
Lateral to seminal colliculus
what artery supply the prostate?
Supplied by prostatic branches of inferior vesical artery
what is the purpose of the SNS and PSNS for the prostate/vas/seminal glands?
SNS: Stimulates peristalsis of vas, secretion by seminal glands/prostate
PSNS: function unclear
how does the innervation of the testes reflect posterior abd. origin?
PSNS: Vagal (CN10)
SNS: T10, T11
the ovary is truly intraperitoneal. its Suspended within the ________ portion of broad ligament
Not covered by _________
what are the lateral and medial attachments of the ovary?
lateral: attach to pelvic wall via SUSPENSORY LIGAMENT
medial: attach to uterus via OVARIAN LIGAMENT
what runs through the suspensory ligament?
what runs through the ovarian ligament?
uterine branches (veins and artery)