Flashcards in 02 Pelvic Floor Deck (15)
The pelvic floor is composed of these two paired muscles
- levator ani
main contributor to the levator ani
The pubococcygeus on the (anterior/posterior) part of the levator ani
From where does the pubococcygeus arise?
- posterior body of pubic bone
- anterior part of arcus
What does the medial fibers of the pubococcygeus border?
Most anterior fibers of the pubococcygeus insert into the ______
Where do the additional fibers of the pubococcygeus insert?
- sweep behind vagina or prostate
- insert into central perineal tendon
What are the additional fibers of the pubococcygeus called?
- levator prostatae
What does the coccygeus muscle do?
reinforces pelvic floor posteriorly
From where does the coccygeus muscle arise?
Where does the coccygeus muscle insert?
lower two sacral and upper two coccygeal segments
What does the coccygeus blend with and where?
sacrospinous ligament on its external surface
Functions of the levator ani
- raise pelvic floor to increase abdominal pressure
- important in voluntary control of urination
- supports pelvic viscera
- supports head of fetus
another word for urinating