Bladder Prostate And Urethra Flashcards
What’s a meatus
Opening
5 different urethras
- Pre-prostatic
- Prostatic
- Bulbar
- Membranous
- Spongy
Why is it so hard to insert catheter into male
Valvula fossae navicularis creates navicular fossa
Shape of pelvic floor
Funnel shaped
Where’s deep perineal pouch /perineal membrane/ superficial perineal pouch
Deep Pouch underneath pelvic floor,
Membrane beneath pouch
Superficial pouch beneath ,membrane
Muscles in deep perineal pouch
External urethral sphincter
Deep transverse perineal muscle
Sphincter urethrovaginalis (F)
Compressor urethrae (F)
bulbourethral gland function and female equivalent
Lubricates wall of female urethra
Skenes glands
Pelvic course of male vs female ureters
Over: external iliac artery
Over: obliterated umbilical artery
Under: vas deferens/ uterine artery
Path of vas deferens
Balls -> vas deferens loops over ureters -> joins seminal vesicles-> ejaculatory duct joins prostrate prosterolaterally -> urethra
Bladder anatomy
Like an inverted pyramid
Apex faces anteriorly
Trigone posteriorly
2 upper corners of trigone : vesicoureteral junction (ureters enter prosteriolaterally)
Bottom corner: neck (connection to urethra)
Dextrusor muscle vs trigone surface
Dextrusor muscle is rough, trigone is smooth walled
Special thing about vesicoureteral junction
Ureters enter obliquely
One way valve which closes when bladder is full
Ligaments associated with bladder and function
F: pubourethral + pubovesical
M: puboprostatic + pubovesical
Keep urethra straight
Arterial supply of bladder
Internal iliac -> inferior vesicle + superior vesicle
Lymphatic drainage of kidney + upper/middle/lower/pelvic ureter + bladder
Kidney: para-aortic Upper ureter: para-aortic /kidney Middle: common iliac Lower: common iliac + external + internal Pelvic : internal Bladder : internal
