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Biceps Femoris: Difference between revisions
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|origin=long head: medial facet of the ischial tuberosity | |origin=long head: medial facet of the ischial tuberosity | ||
short head: lateral linea aspera and lateral supracondylar line of the femur and adjacent intermuscular septum | short head: lateral linea aspera and lateral supracondylar line of the femur and adjacent intermuscular septum | ||
|insertion=fibular head, crural fascia and lateral tibial condyle | |insertion=fibular head, crural fascia and lateral tibial condyle (common short and long head tendon) | ||
|action=flexes knee joint | |action=flexes knee joint | ||
laterally rotates knee joint (when the knee is flexed) | laterally rotates knee joint (when the knee is flexed) | ||
Revision as of 16:44, 6 April 2022
This article is a stub.
| Biceps Femoris | |
|---|---|
| Muscle Type | |
| Origin | long head: medial facet of the ischial tuberosity
short head: lateral linea aspera and lateral supracondylar line of the femur and adjacent intermuscular septum |
| Insertion | fibular head, crural fascia and lateral tibial condyle (common short and long head tendon) |
| Action | flexes knee joint
laterally rotates knee joint (when the knee is flexed) extends hip joint (long head only) external rotation of the thigh (long head only) |
| Synergists | |
| Antagonists | Quadriceps Femoris |
| Spinal innervation | L5, S1, S2 |
| Peripheral Innervation | long head: Tibial Nerve, short head: Common Peroneal Nerve |
| Vasculature | inferior gluteal artery
perforating arteries popliteal artery |
