Origin
Pubic symphysis.
Insertion
After merging with several structures around the rectum and in the perineum, the fibers finally attach onto the coccyx.
Blood supply
Internal pudendal artery, internal iliac artery.
Nerve supply
Sacral nerves, levator ani nerve.
Action
It helps to control the elimination during bowel movement. It is always in contracted state. When it relaxes, it helps to ease the bowel movements.
Disease/Injury
Constipation can occur if the muscle does not relax properly.
Muscle Exercise
To treat chronic constipation, you can practice pelvic floor retraining. Coordinate the function of muscles of abdomen with the pelvic floor muscles.
Interesting facts
For easy defecation, it is better to sit in squatting position than using western toilets.
