muscles of the pelvic floor
- helps maintain the pelvic and abdominal viscera
- maintain abdominal pressure - ANS-what is the function of the pelvic floor?
- posterior half of levator ani - ANS-iliococcygeus
- thinking of muscle medially
- joins with its fibres on the opposite side to form a sling around anorectal junction -
ANS-puborectalis
- widest part
- lateral to puborectalis and medial to iliococcygeus - ANS-pubococcygeus
1. levator ani
2. coccygeus - ANS-what are the two muscles which form the pelvic floor?
1. puborectalis
2. pubococcygeus
3. iliococcygeus - ANS-what are the three parts to levator ani?
collection of muscles forming the pelvic diaphragm which stretches across the pelvic outlet -
ANS-what is the pelvic floor?
O: body of pubis, tendinous arch of obturator fascia and ischial spine
I: perineal body, coccyx, anococcygeal ligament, walls of prostate/vagina, rectum and anal canal
N: nerve to levator ani, inferior anal nerve and coccygeal nerve
A: forms long to hold abdominopelvic viscera, resists pressure and controls continence -
ANS-levator ani
O: ischial spine
I: inferior sacrum and coccyx
N: S4 and S5 nerves
A: forms part of pelvic diaphragm - supports pelvic viscera and flexes the coccyx -
ANS-coccygeus
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