THE TENSOR FASCIA LATAE IS A MUSCLE OF THE THIGH LOCATED IN THE LATERAL ASPECT OF THE THIGH. TENSOR FASCIA LATAE IS A FUSIFORM MUSCLE AND TOGETHER WITH GLUTEAL MAXIMUS IT ACTS ON THE ILIOTIBIAL BAND AND IS CONTINUOUS WITH ILIOTIBIAL TRACT AND ATTACHES TO THE TIBIA. ORIGIN: ILIAC CREST(POSTERIOR TO ANTERIOR SUPERIOR ILIAC SPINE) INSERTION: ILIOTIBIAL TRACT (WHICH CONTINUES TO ATTACH TO THE LATERAL CONDYLE PF THE TIBIA) NERVE SUPPLY: SUPERIOR GLUTEAL NERVE BLOOD SUPPLY: PRIMARILY LATERAL CIRCUMFLEX FEMORAL ARTERY,SUPERIOR GLUTEAL ARTERY ACTION: PREVENTS COLLAPSE OF EXTENDED KNEE IN AMBULATION,ASSIST ABDUCTION,MEDIAL ROTATION,FLEXION OF FEMUR AT HIP AND EXTENSION OF KNEE. PALPATION: BELOW SUPERIOR ILIAC SPINE ON ANTERIOR PELVIS (AT A LEVEL OF GREATER TROCHANTER)DURING ACTIVE HIP ABDUCTION. THIS MUSCLE BRACES THE KNEE WHEN WALKING. ALSO KNOWN AS ILIOTIBIAL BAND(ITB).