Origin

Greater trochanter, Intertrochanteric line, and Linea aspera of the Femur

Insertion

Patella via the Quadriceps tendon and Tibial tuberosity via the Patellar ligament

Action(s)

Extends and stabilizes knee

Nerve Supply

Femoral nerve

Arterial Supply

Femoral artery

Physical Exam

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Clinical Importance

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Disease States

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Discussion

A few additional fibers arise from the tendon of the Glutæus maximus, and from the lateral intermuscular septum between the Vastus lateralis and short head of the Biceps femoris. The fibers form a large fleshy mass, which is attached to a strong aponeurosis, placed on the deep surface of the lower part of the muscle: this aponeurosis becomes contracted and thickened into a flat tendon inserted into the lateral border of the patella, blending with the Quadriceps femoris tendon, and giving an expansion to the capsule of the knee-joint.

Figures

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From Wikipedia:
Vastus lateralis

Attachments:


Vastus lateralis.png (image/png)