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Biceps Femoris
Region: Hip & Thigh Muscles · All hip & thigh muscles
Biceps Femoris at a glance
| Origin | Long head: ischial tuberosity; short head: linea aspera of the femur |
|---|---|
| Insertion | Head of the fibula |
| Actions | Bends the knee (flexion); Rotates the leg outward when the knee is bent; Long head extends the thigh |
| Nerve supply | Sciatic nerve: tibial division (long head) and common fibular division (short head) |
◆ Good to know
The lateral hamstring; the common fibular nerve winds around the fibular neck just below its insertion, where it is vulnerable to injury.
More Hip & Thigh Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.