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biceps femoris
biceps fem·o·ris B0231200 (fĕm′ər-ĭs)n. See biceps.
[New Latin : biceps, biceps + Latin femoris, genitive of femur, thigh.]EncyclopediaSeebicepsbiceps femoris
biceps femoris (fĕm′ər-ĭs)n. See biceps.biceps femoris A two-headed major muscle of the leg.
Long head
Origin
Inner medial ischial tuberosity and sacrotuberous ligament.
Insertion
Head of fibula and lateral condyle of tibia.
Action
Extends thigh and flexes leg.
Nerve
Tibial branch of the sciatic nerve (L5, S2).
Short head
Origin
Lateral linea aspera and lateral intermuscular septum.
Insertion
Lateral condyle of tibia.
Action
Flexes leg.
Nerve
Common peroneal branch of the sciatic nerve (L5, S2). |