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3D - Vastus medialis

Vastus medialis

Vastus medialis

Pronunciation

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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

Structural Label Key