The tensor fascia lata is a muscle of the gluteal region in the lower limb. It is a small superficial muscle which lies towards the anterior edge of the iliac crest. It functions to tighten the fascia lata, and so abducts and medially rotates the lower limb.
- Attachments: Originates from the anterior iliac crest, attaching to the anterior superior iliac spine (ASIS). It inserts into the iliotibial tract, which itself attaches to the lateral condyle of the tibia.
- Actions: Abduction and medial rotation of the lower limb.
- Innervation: Superior gluteal nerve.
- Blood Supply: Superior gluteal artery.