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| Calf (anatomy) ： ウィキペディア英語版 |
Calf (leg)
The calf (TA: sura) is the back portion of the lower leg in human anatomy. The muscles within the calf correspond to the posterior compartment of the leg. The two largest muscles within this compartment are known together as the calf muscle and attach to the heel via the Achilles tendon. Several other, smaller muscles attach to the knee, the ankle, and via long tendons to the toes.
==Structure==
The calf is composed of the muscles of the posterior compartment of the leg: The gastrocnemius and soleus (composing the triceps surae muscle) and the tibialis posterior. The sural nerve provides innervation.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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