ampulla

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ampulla

 [am-pul´ah] (pl. ampul´lae) (L.)
a flasklike dilatation of a tubular structure, especially of the expanded ends of the semicircular canals of the ear.
ampulla chy´li cisterna chyli.
ampulla duc´tus deferen´tis (Henle's ampulla) the enlarged and tortuous distal end of the ductus deferens.
hepatopancreatic ampulla ampulla of Vater; a flasklike cavity in the major duodenal papilla into which the common bile duct and pancreatic duct open.
 Hepatopancreatic ampulla, receiving the common bile and pancreatic ducts and entering the duodenum at the major duodenal papilla. From Dorland's, 2000.
Lieberkühn's ampulla the blind termination of the lacteals in the villi of the intestines.
ampul´lae membrana´ceae membranous ampullae: the dilatations at one end of each of the three semicircular ducts.
ampul´lae os´seae the dilatations at one of the ends of the semicircular canals.
phrenic ampulla the dilatation at the lower end of the esophagus.
ampulla of rectum the dilated portion of the rectum just proximal to the anal canal.
ampulla of Thoma one of the small terminal expansions of an interlobar artery in the pulp of the spleen.
ampulla of uterine tube the longest and widest portion of the fallopian (uterine) tube between the infundibulum and the isthmus of the tube.
ampulla of Vater hepatopancreatic ampulla; the term “ampulla of Vater” is often mistakenly used instead of “papilla of Vater,” or major duodenal papilla.

am·pul·la

, gen. and pl.

am·pul·lae

(am-pul'lă, -ē), [TA] Avoid the mispronunciation am'pulla.
A saccular dilation of a canal or duct.
[L. a two-handled bottle]

ampulla

(ăm-po͝ol′ə, -pŭl′ə)
n. pl. am·pullae (-po͝ol′ē, -pŭl′ē)
1. A nearly round bottle with two handles used by the ancient Romans for wine, oil, or perfume.
2. Ecclesiastical A vessel for consecrated wine or holy oil.
3. Anatomy A small dilatation in a canal or duct, especially one in the semicircular canal of the ear.

am·pul′lar adj.

ampulla

Anatomy
A sac-like enlargement of a duct or tube.
 
Pharmacology
Ampule, see there.

ampulla

A saclike enlargement of a duct or tube
1. Ampulla of Vater, formally, hepatopancreatic ampulla.
2. Ampule.

am·pul·la

, pl. ampullae (am-pul'ă, -ē) [TA]
A saccular dilation of a canal or duct.
[L. a two-handled bottle]

ampulla

A widened (dilated) segment of a gland or small tube.

ampulla

any small vesicle or sac-like offshoot, particularly the dilation at the end of the semicircular canal of the EAR, which houses sensory epithelium and is concerned with balance; See CRISTA AMPULLARIS. Other examples include the internal expansion of the echinoderm tube-foot, and the pit housing the medusoid stage in the calcareous skeleton of Hydrocorallina.

am·pul·la

, pl. ampullae (am-pul'ă, -ē) [TA]
A saccular dilation of a canal or duct.
[L. a two-handled bottle]
References in periodicals archive ?
Dissection of adults and buds away from the marginal ampullae during their midcycle blastogenic stage (i.e., not undergoing takeover) was carried out using a scalpel and a single-edge razor blade.
H: head of epididymis, B: body of epididymis, T: tail of epididymis, SV: seminal vesicle, BU: bulbourethral, Am: ampullae of vas deferens, Bd: bladder, Kd: kidney, l: left, and r: right.
A morphological analysis of the ampullae of Lorenzini in selected skates (Pisces, Rajoidei).
BONUS: The shark, ray, and skate have sensors called Ampullae of Lorenzini that are connected to pores in their skin and transmit electrical signals to their brains.
The first two have a complex spermatheca, with digitiform prolongations on the duct, while the second two have similar terminal ampullae, but the duct is smooth.
Inside the inner ear, the labyrinthine artery divides into the anterior vestibular artery and the common cochlear artery: the former provides blood to the ampullae of the anterior and horizontal semicircular canals, the utricle and a small part of the saccule; the latter branches into the posterior vestibular artery and the main cochlear artery, the first of which supplies blood to the remainder of the saccule and the posterior semicircular canal ampulla (Baloh, 1996b).
In addition to decorations on ampullae and other pilgrim "souvenirs," its architectural form was replicated both on a small scale - for example, the fragment of a stone model preserved in the Musee lapidaire at Narbonne - and also at something approaching full size.
The little tinlead, purse-shaped ampullae that were issued at Canterbury in Chaucer's time contained miraculous water that had been, it was claimed, in touch with the blood of the martyr St Thomas.
Using anesthetized animals, Obara and Bennett (1972) recorded from the primary afferent neurons projecting from the receptor cells lining the ampullae of Lorenzini in two skate species, Raja oscellata and Raja erinacea.
The computational model consists of the utricular cavity, the HC, the AC, the PC, and their ampullae; see Figure 1.
(B) It gives off a high-pitched noise detected by sharks' ampullae of Lorenzini.