ischioglutealis

Ischioglutealis is an anatomical term that has appeared in some historical and comparative anatomy discussions to describe a muscle or muscle group associated with the ischial region and the gluteal area of the pelvis. In modern standard human anatomy, the term is not part of the accepted nomenclature, and no universally recognized distinct ischiogluteal muscle is described in contemporary textbooks. As a result, the term is often treated as obsolete or variable, particularly in human anatomy.

In species where it is described, the ischioglutealis is reported to originate in the region of the ischium, near the ischial tuberosity, and to extend toward the gluteal region or adjacent areas of the proximal femur. Because attachments and exact identity can vary among mammals, the muscle’s functional role is not fixed. It is generally considered to contribute to movements of the hip, such as extension or stabilization, or to participate in the mechanics of the gluteal muscle complex, depending on the specific anatomy of the species.

Etymology reflects its presumed location and relationship: from ischium and gluteus. The lack of consistent attachments and function means that ischioglutealis is not used in contemporary human anatomy as a standard muscle name, though it may appear in some veterinary or historical texts.

See also: gluteal muscles; hip joint; ischium; anatomy of the pelvis.