Caput

(kap'-id). 1. The head; also the chief part or beginning of an organ. 2. The cephalic or pre cornual portion of the caudatum of the prosencephal. C. col i, the head of the colon. C. cornu posterior is. Same as C. gelati no sum. C. gall in agin is. See Verumontanum . C. gelati no sum, the name given to the translucent gray matter covering the dor so-mesal periphery of the dorsal horn of the spinal cord. It is a nervous substance composed of numerous closely crowded nerve-elements, with an intricate intervening plexus of very fine nerve-fibrils, derived from the dorsal (posterior or " sensory") nerve-roots. C. medusae. See Medusa , Caput. C. obstipum. Synonym of Wry-neck. C. quadratum, the rectangular head of rickets, flattened upon the top and at the sides, with projecting occiput and prominent frontal bo es. C. succedaneum, a tumor composed of a sero-sanguineous infiltration of the connective ti ue situated upon the presenting part of the fetus.