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Vastus lateralis

Other Terms: Quadriceps femoris, Musculus vastus lateralis, Muscle vaste latéral

Muscle parts

None

Latin name

Musculus quadriceps femoris – Musculus vastus lateralis

Latin muscle parts

None

Group

Thigh muscle – anterior compartment

Etymology

The English name for this muscle is the enormous muscle on the side. Vastus is the Latin word for “enormous.” The Latin term lateralis is derived from the Latin lata meaning “side.”

Origin

Proximal portion of intertrochanteric line, anterior and inferior margins of the greater trochanter, lateral side of gluteal tuberosity and laterally on the linea aspera in its proximal half; fibers also arise from the lateral intermuscular septum

Insertion

Tibial tuberosity (the patella is a sesamoid bone within the quadriceps tendon, the combined tendon of the rectus and vasti muscles; proximal to the patella the tendon is named the quadriceps tendon, distal to the patella the tendon is called the patellar ligament)

Action

Extension of the knee.

Nerve supply

Femoral nerve (L2, L3,and L4)

Blood supply

From proximal to distal, the muscle is supplied by the ascending, transverse, and descending branches of the lateral circumflex femoral artery, the perforating branches of the deep femoral artery, and the superior genicular branch of the popliteal artery.

Latin

Musculus vastus lateralis

French

Muscle vaste latéral

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