Lower Renal Tract Anatomy Flashcards
What are the borders of the false pelvis?
Iliac crests to pelvic inlet
What are the borders of the true pelvis?
Pelvic inlet to pelvic floor
What muscle forms the boundary between the true pelvis and perineum?
Levator ani
At what landmark do the ureters turn medially to enter the posterior bladder?
Ischial spine
What is the benefit of the ureters entering the bladder inferomedially?
Prevents reflux of urine back into ureters when bladder contracts
What is the most inferior part of the male peritoneal cavity in the anatomical position?
Rectovesicle pouch
At what landmark does the ureter cross into true pelvis?
Bifurcation of common iliac
What is the most inferior part of the female peritoneal cavity in the anatomical position?
Rectouterine pouch (pouch of Douglas)
In the female, the ureter runs inferiorly to what structures?
Uterine tubes and artery (water under the bridge)
In the male, the ureter runs inferiorly to what structure?
Vas deferens
What forms the trigone of the bladder?
2 ureteric orifices
Internal urethral orifice
What muscle forms the bulk of the bladder wall?
Detrusor
What muscle is found around the neck of the male bladder?
Internal urethral sphincter muscle
Why do only males have an internal urethral sphincter muscle?
Prevent retrograde ejaculation of semen into the bladder
In females, what structure lies superior to the bladder?
Uterus
