gastrocnemius muscle

gastrocnemius muscle

noun
the muscle in the back part of the leg that forms the greater part of the calf; responsible for the plantar flexion of the foot [syn: gastrocnemius
WordNet® 3.0, © 2006 by Princeton University.
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Encyclopedia Britannica
Encyclopedia

gastrocnemius muscle

large posterior muscle of the calf of the leg. It originates at the back of the femur (thighbone) and patella (kneecap) and, joining the soleus (another muscle of the calf), is attached to the Achilles tendon at the heel. Action of the gastrocnemius pulls the heel up and thus extends the foot downward; the muscle provides the propelling force in running and jumping

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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