Pelvic Viscera Flashcards
Ureter Constrictions
Ureteropelvic Junction (UPJ), Where it crosses Iliac artery (near ext/int bifurcation, netters shows distal to), Ureterovesical Junction (UVJ), Where it is crossed by gonadal vessels
“Water under the bridge”
Left ureter crosses underneath (inferior) Left uterine artery and vein. Right ureter is superior to right uterine a/v
(Males left ureter inferior to ductus deferens, less clinically significant)
Urinary Bladder
Located in retropubic space
Empty: in true pelvis, 4 sided pyramid
Full: protrudes into abdominal cavity (ant & sup), ovoid
Medial and lateral Pubovesical (female) or Puboprostatic (male) ligaments fix neck to lower margin of pubic symphasis
Suprapubic Catheter
Used in males with enlarged prostates. Straight into bladder. Does not pierce peritoneum
Bladder Trigone
Smooth triangular area in posterior inferior bladder in non-distended state. Between openings for ureters (oblique angle) to neck
Internal urethral sphincter
at neck of bladder. thickening of dtrusor muscle. Sympathetic and parasympathetic innervation
Sphincter Urethrae
External urethral sphincter. associated with membranous urethra. skeletal muscle, pudendal nerve
Parts of male urethra
Preprostatic, Prostatic, membranous (just distal to prostate, deep perineal pouch, spincter urethrae), penile/songy (has openings for bulbourethral glands)
Ductus deferens
Begins at end of epididymis, travels in spermatic cord, widens into ampulla posterior to bladder, superior to prostate and joins with seminical vesicle to form ejaculatory duct
Tunica Albuginea
dense connective tissue covering seminiferous tubules of testes, gives of septa that seperate testes into lobules
Seminiferous tubules
where sperm production takes place
Efferent ductules
connects seminiferous tubules to epidiymis
Bulbourethral gland
inferior to pelvic diaphram in deep perineal pouch, related laterally to sphincter urethrae
Prostate
Golf ball sized
Glandular and fibromuscular tissue
5 lobes, true and false capsule
Base-portion inferior to bladder
Apex-lies along superior fascia of deep perineal pouch
Posterior aspect near ampulla of rectum (digital rectal exam)
Benign Prostatic enlargements
usually involve median and lateral lobes