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Pelvic 2 - Vasculature - UNC MS1 Anatomy
Pelvic 2 - Vasculature - UNC MS1 Anatomy
8
Anatomy
Graduate
11/20/2011

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Term
what passes through the levator ani?
function of levator ani?
what innervates it?
Definition
anus, urethra, and vagina (F)
supports pelvic viscera and assists in voluntary control of urination and fetal continence.
resists intra-abdominal pressure.
innervated by ventral rami of S3,4,5
Term
what can loss of pelvic diaphragm support for the bladder (vs. rectum) cause?
Definition
bladder - cystocele --> incontinence
rectum - rectocele --> defecatory dysfunction
Term
what passes through the lesser sciatic foramen?
Definition
pudendal nerve, internal pudendal vessels, obturator internus (inserts on posterior side of femur)
Term
what is the fasica thickening of the obturator internus?
Definition
arcus tendineus, attachment site for pelvic floor muscles
Term
what passes through the obturator canal?
Definition
obturator nerve and vessels
Term
what passes beneath the inguinal ligament?
Definition
lateral - femoral nerve, iliopsoas muscle, lateral femoral cutaneous nerve
medial - femoral artery and vein
Term
what does the lumbosacral plexus generally innervate?
Definition
pelvic and lower limb muscles and associated skin and perineum
Term
what are the branches off of the anterior division of the internal iliac artery?
Definition
inferior gluteal, internal pudendal, obturator artery (muscles of medial thigh), umbilical artery, uterine and vaginal arteries, middle rectal
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