ischiococcygeus
The ischiococcygeus muscle, also known as the coccygeus muscle, is one of the two muscles that make up the pelvic diaphragm. It is a small, triangular muscle located in the posterior part of the pelvic floor. The ischiococcygeus originates from the ischial spine and the sacrospinous ligament and inserts onto the lateral margin of the coccyx and the sacrum.
The primary action of the ischiococcygeus is to support the pelvic floor and assist in elevating the
Innervation to the ischiococcygeus is provided by the coccygeal nerve, a branch of the sacral plexus. Its