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

/am·pul·la/ (am-pul´ah) pl. ampul´lae   [L.] a flask-like dilatation of a tubular structure, especially of the expanded ends of the semicircular canals of the ear.ampul´lar
ampulla chy´li  cisterna chyli.
ampulla duc´tus deferen´tis  the enlarged and tortuous distal end of the ductus deferens.
hepatopancreatic ampulla , ampulla hepatopancrea´tica the dilatation formed by junction of the common bile and the pancreatic ducts proximal to their opening into the lumen of the duodenum.
Enlarge picture
Ampulla hepatopancreatica (hepatopancreatic ampulla), receiving the common bile and pancreatic ducts and entering the duodenum at the major duodenal papilla.
ampul´lae lacti´ferae  lactiferous sinuses.
ampul´lae membrana´ceae  membranous ampullae: the dilatations at one end of each of the three semicircular ducts, anterior, lateral, and posterior.
ampul´lae os´seae  the dilatations at one of the ends of the semicircular canals, anterior, lateral, and posterior.
phrenic ampulla  a dilatation sometimes seen at the lower end of the esophagus.
rectal ampulla , ampulla rec´ti 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 thin-walled, almost muscle-free, midregion of the uterine tube; its mucosa is greatly plicated.
ampulla of vas deferens  a. ductus deferentis.

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

[ampo̅o̅l′ə] pl. ampullae,
Etymology: L, flasklike bottle
a rounded, saclike dilation of a duct, canal, or any tubular structure, such as the lacrimal duct, semicircular canal, fallopian tube, rectum, or vas deferens.

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]

ampulla

pl. ampullae [L.] a flasklike dilatation of a tubular structure, especially of the expanded ends of the semicircular canals of the ear. See also ampullar.

ampulla chyli
cisterna chyli.
ampulla coli
the enormously dilated part of the right dorsal colon of the horse.
ampulla ductus deferentis
the enlarged glandular urethral end of the ductus deferens.
Henle's ampulla
ampulla ductus deferentis.
hepatopancreatic ampulla
ampulla of Vater; in humans, a flasklike cavity in the major duodenal papilla into which the common bile duct and pancreatic duct open.
Lieberkühn's ampulla
the blind termination of the lacteals in the villi of the intestines.
ampullae membranaceae
the dilatations at one end of each of the three semicircular ducts.
ampullae osseae
the dilatations at one of the ends of the semicircular canals.
phrenic ampulla
the dilatation at the diaphragmatic end of the esophagus in some species.
rectal ampulla
the dilated portion of the rectum just proximal to the anal canal, prominent in the horse.
ampulla of Thoma
one of the small terminal expansions of an interlobar artery in the pulp of the spleen.
uterine tube ampulla
the longest and widest portion of the uterine tube, between the infundibulum and the isthmus of the tube.
vas deferens ampulla
dilatation of the terminal part of the vas deferens caused by glandular thickening of the wall.
ampulla of Vater
hepatopancreatic ampulla.
References in periodicals archive ?
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 Ampullae of Lorenzini are made up of salt and Protein gel-clusters.
Over the years, researchers have proposed that sharks use their ampullae to find their way and that the sensory canals play a role in detecting temperature.
Marine biologist Adrianus Kalmijn of the Scripps Institute of Oceanography in San Diego said the ampullae can sense the most minute electrical fields.
If two adjacent squirts aren't related, their respective ampullae blacken and shrivel upon contact.
Spermathecae minuscule with no diverticula, various shapes: ampullae are elongated tubes, bent or serpentine, close to septa 10/11, 11/12 and 12/13, spermathecae paired, or occasionally only two of them at one side.
These small electrical fields are picked up by special structures called the Ampullae of Lorenzini, which are small openings (like little pores) located in the region of their snout.
Special structures, called the Ampullae of Lorenzini, located in their snouts, can detect small electrical signals sent out by all animals.
Length and calcification stage of claspers, width of epididymides, and the presence of seminal fluid in the ampullae of the ductus deferens were recorded from males.