greater sciatic notch

Mon, 04 May 2026 14:44:09 +0000

# Understanding the Greater Sciatic Notch: Anatomy, Function, and Clinical Relevance The greater sciatic notch (often abbreviated as GS notch) is a key anatomical landmark in human biomechanics and orthopedics. Found at the posterior part of the pelvis, this structural feature plays a crucial role in muscle attachment, nerve pathways, and overall lower limb function. Whether you're a medical student, a healthcare professional, or someone curious about human anatomy, understanding the greater sciatic notch is essential. ## Anatomy of the Greater Sciatic Notch Located beneath the posterior iliac crest, the greater sciatic notch is a depression on the external surface of each pelvic bone (ilium). It serves as a structural conduit and attachment site for several important muscles and nerves. The notch is bounded posteroinferiorly by the sciatic nerve canal and serves as the origin point for muscles such as: