Crus (kr?s), n.; pl. Crura (kr"r). [L., the leg.] Anat. (a)

That part of the hind limb between the femur, or thigh, and the ankle, or tarsus; the shank.

(b)

Often applied, especially in the plural, to parts which are supposed to resemble a pair of legs; as, the crura of the diaphragm, a pair of muscles attached to it; crura cerebri, two bundles of nerve fibers in the base of the brain, connecting the medulla and the forebrain.

 

© Webster 1913.

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