crista

(kris’tah) (L. for “crest’”]. A crest or ridge. c. acus’tic a, a localized thickening of the membrane lining the ampulle of the semicircular canals: it is covered with neuro-epithelium containing auditory cells. 6. concha’lis, the inferior turbinal crest. ¢. ethmoid a’lis, the superior turbinal crest. c. falcifor'mis, a ridge separating the macula cribrosa superior above from the other maculx cribrose below. c. fem’- or is. Same as line a aspera. c. gal’li, the “cock’s-comb"; a ridge on the ethmoid bone to which the falx cerebri is attached. c. hel’icis, a projection on the helix above the external meatus of the ear. c. il’ii, the crest of the ilium. c. infra temp or a’lis, the pterygoid ridge. c. imteros’sea. See intero eous ridge, under ridge. c. inter trochanter’ica. Sce inter trock ant eric line, under Jine. c. lacrima’lis poster’ior, the lacrimal crest. Sce crest.. pubis, the crest oi the pubes. cc. rei ’neri, a crista in the pelvis of the fenestra rotunda, forming the outer boundary of the rece us anterior. c. sphenoid a’lis. Sce sphenoid crest, under crest. ¢. pine’ rum. Same asc. lympanica. Ο. spira’- a ridge on the spiral lamina of the cochlea.