GASTROCNEMIUS

Gastrocnemius muscle

Origin of Gastrocnemius

Medial head from posterior nonarticular surface of medial femoral condyle; Lateral head from lateral surface of femoral lateral condyle.

Insertion of Gastrocnemius

The two heads unite into a broad aponeurosis which eventually unites with the deep tendon of the soleus to form the Achilles tendon, inserting on the middle 1/3 of the posterior calcaneal surface.

Muscle Action/Function of Gastrocnemius

Powerful plantar flexor of ankle.

Arterial (Blood) Supply of Gastrocnemius

Each head supplied by a sural branch of the popliteal artery.

Gastrocnemius Video

Gastrocnemius muscle

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