Crusta

[krus’ ’-tali) [L. a crust]. The inferior portion of the crus cerebri. C. petrosa, a thin layer of bone covering the fang of a tooth. C. phlogistic a, the yellowish layer of the upper stratum of a blood-clot coagulating slowly. Crutch-paralysis. Paralysis of an upper extremity due to the pre ure of the crutch head upon the nerves of the axilla, especially the musculospiral nerve. Cruveilhier’s Disease. See Diseases, Table °f- 215