Description
The ischial tuberosity is the large, rounded, rough elevation on the dorsal surface of body of ischium. It provides the origin sites for multiple muscles, including the:
—hamstring muscles (i.e., semitendinosus, semimembranosus and long head of biceps femoris muscles);
—ischiocondylar part (hamstring part) of adductor magnus muscle;
—quadratus femoris muscle;
—inferior gemellus muscle.
The ischial tuberosity also provides an attachment site for the sacrotuberous ligament and is the structure that supports the body when sitting.