Ischium jumping hurdles, basketball, and martial arts. These fractures occur at tubercles (bony projections that lack secondary ossification centers). Avulsion fractures occur where muscles are attached: anterior superior and inferior iliac spines, ischial tuberosities, and ischiopubic rami. A small part of bone with a piece of a tendon or ligament attached is avulsed (torn away). Ischial bursitis (also known as "weaver's bottom") is inflammation of the synovial bursa located between the gluteus maximus muscle and the ischial tuberosity, and is usually caused by prolonged sitting on a hard surface. Adoption of "ischium" into English-language medical literature dates back to c. 1640;
Angel's Bone Angel's Bone Angel's Bone is an opera by composer Du Yun and librettist Royce Vavrek in one act that follows the plight of two angels discovered on earth who are forced into spiritual and sexual slavery at the hands of a financially troubled couple. The work is a contemporary parable about human trafficking. Julian Wachner conducted the performances with Novus NY and the Trinity Wall Street Choir. The production, which opened on January 6, 2016, at the 3LD Art & Technology Center in Greenwich Street, Lower Manhattan, as part of the Prototype Festival in New York City, was directed by