Lateral femoral intermuscular septum
Septum intermusculare femoris laterale · Zevní stehenní mezisvalová přepážka
Fascia & connective tissue
Looks like
A strong sheet of fascia from the outer fascia lata to the thigh bone, between the vastus lateralis and hamstrings.
What it does
Separates the front and back compartments of the thigh and gives the muscles attachment.
Keeping it well
Surgeons follow it to reach the femur from the side; perforating vessels near it can bleed.