biceps femoris muscle
Muscles of
the gluteal and posterior femoral regions with current muscle highlighted
Muscles of
the gluteal and posterior femoral regions with current muscle highlighted
Biceps
femoris muscle • Biceps femoris muscle - Gray's anatomy illustration - Ganzer Fall bei Radiopaedia
Biceps
femoris muscle • Thigh - axial anatomy - Ganzer Fall bei Radiopaedia
Biceps
femoris muscle • Biceps femoris (partial tear) - Ganzer Fall bei Radiopaedia
The biceps femoris is one of the large muscles in the posterior compartment of the thigh and a component of the hamstrings. It has a long and a short head, each with different functions and innervation.
Its medial border forms the superolateral border of the popliteal fossa.
Summary
- 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
- 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)
- arterial supply
- inferior gluteal artery
- perforating arteries
- popliteal artery
- innervation
- long head: tibial nerve
- short head: common peroneal nerve
- antagonist: quadriceps
Variant anatomy
- absence of the short head
- exclusive tibial insertion (rare)
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Musculus biceps femoris:
