Papilla

(pap-il’-ah) [L., a nipple]. I. A small, nipple-like eminence. 2. Synonym of Optic Disc. P., Circumvallate, one of the large papilla at the root of the tongue, arranged like the letter V opening forward. P., Clavate. Synonym of P., Fungiform. P., Conical. See P., Filiform. P., Dental. See Organ, Enamel-. P., Duodenal, the elevation at the point where the duct us communis choledochus enters the duodenum. P., Filiform, any one of the papillae occurring on all parts of the tongue, consisting of an elevation of connective ti ue covered by a layer of epithelium. P., Fungiform, any one of the low, broad papillae found on the surface of the tongue, consisting of a connective-ti ue elevation, covered by secondary papillae. P., Lacrimal, a small conic eminence on the eyelid at the inner canthus, pierced by the lacrimal punctum. P., Renal, the summit of any one of the renal pyramids projecting into the renal pelvis. 475