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calcar (kal´kar)

1. A small projection from any structure; internal spurs (septa) at the level of division of arteries and confluence of veins when branches or roots form an acute angle. See also vascular spur. 2. A dull spine or projection from a bone. 3. Archaic term for a horny outgrowth from the skin.spur; [L. spur, cock's spur]
c. a´vis [NA] the lower of two elevations on the medial wall of the posterior horn of the lateral ventricle of the brain, caused by the depth of the calcarine sulcus.Haller's unguis, hippocampus minor, minor hippocampus, Morand's spur, unguis avis;
c. femora´le a bony spur springing from the underside of the neck of the femur above and anterior to the lesser trochanter, adding to the strength of this part of the bone.Bigelow's septum;
c. pedis calx (2)


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