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Vastus medialis

Other Terms: Quadriceps femoris, Musculus vastus medialis, Muscle vaste médial

Muscle parts

None

Latin name

Musculus quadriceps femoris – Musculus vastus medialis

Latin muscle parts

None

Group

Thigh muscle – anterior compartment

Etymology

The English name for this muscle is the enormous muscle toward the middle. Vastus is the Latin word for “enormous.” The Latin term medialis is derived from the Latin medius meaning “middle.”

Origin

Distal edge of the intertrochanteric line, the pectineal line of the femur, the medial side of entire linea aspera, the medial supracondylar line, and the medial 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 femoral artery and its descending genicular branch and from the medial superior and medial inferior genicular branches of the popliteal artery.

Latin

Musculus vastus medialis

French

Muscle vaste médial

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