EPIPHYSIS

(Lat.), n. f. E2j)-i2f'i2(u)-si2s. Gen., eptphys'eos (-iph'is is). Gr., eiri i> veiv, to grow). Fr., epiphyse. Ger., Epiphyse. Knochenansatz (1st and 2d def's). 1. A portion of a long bone formed at either extremity from a secondary or tertiary centre of o ification and united to the shaft during early life by an intervening layer of cartilage which in time o ifies. [C.] 2. A bony eminence or proce . [C.] 3. A small swelling upon the edge of the eyelid. [L, 349.] E. ace tabuli. See Cotyloid BONE. E. cerebri. A small reddish body situated at the posterior part of the third ventricle between the corpora quadrigemina. Microscopically it consists of follicles separated by connective ti ue. These are lined by epithelial cells and contain corpora a my lace a, calcium salts, and fat. Its function is unknown. [I, 16.] E. cruris long i or is incudis. See Orbicular BONE. E. ill i anterior. See Cotyloid BONE. E. incudis. See Orbicular BONE. E. medullar is. Of Will is, an obscure term for a tract of nerve-fibres which extend from the corpora striata to the corpora quadrigemina. [I, 3(K).] E. piae matris [Pare]. See Chorioid PLEXUS. [s. 731]