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ampulla
A saccular dilation of a canal or duct.
Latin: a two-handled bottle
Related
crista ampullaris (ampullary crest)
Specific
ampulla of ductus deferens; Henle ampulla
ampulla of uterine tube
ampulla of Vater (hepatopancreatic, bilaropancreatic ampulla)
rectal ampulla
General
ductus
References
Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999.