Puborectalis muscle

puborectalis:The levator ani is a broad, thin muscle, situated on either side of the pelvis. It is formed from three muscle components: the pubococcygeus, the iliococcygeus, and the puborectalis.Right hip bone. Internal surface.Coronal section of pelvis, showing arrangement of fasciæ. Viewed from behind.Muscles of male perineum.The arteries of the pelvis.Sacral plexus of the right side.Iliac colon, sigmoid or pelvic colon, and rectum seen from the front, after removal of pubic bones and bladder.The posterior aspect of the rectum exposed by removing the lower part of the sacrum and the coccyx.Male pelvic organs seen from right side. The levator ani is a broad, thin muscle, situated on either side of the pelvis. It is formed from three muscle components: the pubococcygeus, the iliococcygeus, and the puborectalis. It is attached to the inner surface of each side of the lesser pelvis, and these unite to form the greater part of the pelvic floor. The coccygeus muscle completes the pelvic floor which is also called the pelvic diaphragm. It supports the viscera in the pelvic cavity, and surrounds the various structures that pass through it. The levator ani is the main pelvic floor muscle and painfully contracts during vaginismus. It also contracts rhythmically during orgasm.