AMPULLA

(Lat.), n. f. A?m(a8m)-puSl(pul)/la’. Gr., dudopetdcov, dudopisiov. Fr., ampoule. Ger., Ampulle. It., Sp., ampolla. 1. In chemiste and physics, a gla flask with long neck and dilated body or a small hollow gla globe. [B,38.] 2. In botany, a flask-shaped dilatation of the leaves found in certain aquatic plants. BB 19.] 3, In anatomy, a flask-like expanded portion of a canal. 4. Tildanus’s term for the heart, liver, and brain at an early period of embryonic life. [L, 94.) 5. In petholoe y (rarely used), a bleb or blister. [G. —A, canaliculi lacrymal is. A dilatation at the curvature oi the lacrymal canal. [L.|—A. chyli, A. chylifera. See RECEPT A- CULUM chylii—A. duct us lactiferi. Fr., ampoule d'un canal galactifère. A sinus of the mammary gland, being the expanded portion of a milk-duct near the aye le, serving as a kind of temporary reservoir for the milk. {C: L.]-—A. Fallopil tub. The outer, sinuous dilated portion of the oviduct. [A, 46.J—A. membranacea labyrinth i. That pear of the membranous labyrinth of the ear which is inclosed in-the a. of a semicircular canal. [F.]—A. nervi optic i. The dilatation of the sub vaginal s, of, the optic nerve at its anterior extremity. [L, 63.]|—Ampullw of the mammary gland. See A. duct us lactiferi—Ampullæ of the membranous semicircular canals. See A. membranacea labyrinth i.—A. of the oviduct. See A. Fullopii tubæ.—A. of the rectum. Fr., ampoule rectale. That portion which is situated between the muscular floor of the pelvis below and the “ third sphineter” above; closed in the normal condition by the collapse of the gut from the sides, but capable of great distension as the result of fæcal accumulation—Ampulle of the semicirenlar canals. See A. membranacea labyrinth i and A. o ea.—A. of the vagina. The dilatable upper portion of the vagina. [L, 44.]—A. of the vas deferens. Fr.,ampoule du canal déferent. Ger., Ampulle des Samenleiters. A name given by Henle to a saccular enlargement near the termination of the canal beneath the bladder. [C. L.]—A. of Vater, Lat., a. (seu diverticulum)Vateri, Fr., ampoule de Vater. Ger., Vater's ches Divertikel. It., ampolla di Vater. A small cavity in the wall of the duodenum, between the muscular and mucous layers, into which the duct us choledochus and the pancreatic duct empty independently; described by Vater, a Dutch anatomist. It ene in the lumen of the intestine as a low, rounded eminence with the opening near the summit. It is present in man and in those of the lower animals in which the bile-duct and the pancreatic duct penetrate the muscular coat of the duodenum independently, but finally open into the intestine by a single orifice. [J, 28; 62; “* Am. Quart. Mier. Jour.,”.|—A. o ea. Syn.: sinus (seu rece us) ampul lace us, sinus elliptic us. The dilated portion of an o eous semicircular canal of the ear at its union with the vestibule, serving for the lodgment of the a. membranacea. [L, 31.]—A, o ea anterior, A. o ea extern a. Fr., ampoule du canal démi-circulaire horizontal. Ger., Ampulle des du eren Bogenganges. A dilatation at the anterior extremity of the horizontal semicircular can a] of the ear. {L, 31.J—A. o ea inferior. Fr., ampoule du canal vertical stérieur. Ger., Ampulle des hinteren vertikalen Bogenganges. ‘he dilatation of the outer portion of the posterior vertical semicircular canal of the ear, [L, 31.J—A. o ea labyrinth i. See A. o ea.—A. o ea superior. Fr., ampoule du canal vertical antérieur. Ger., Ampulle des vorderen vertikalen Bogenganges. The dilatation at the interior extremity of the superior vertical semicircular canal of the ear. [L, 31.]—A. vas is deferent is. See A. of the vas deferens.—Lieberkiihn’s A. The cecal end of a lac- ‘teal in an intestinal villus, [J, 24.] AMPULLACEOUS, adj. A?m-pu‘l-la’shu’s. Lat., ampul lace us. Fr., ampullacé. See AMPUL LACE US and AMPUL LATE.