Medical Dictionary


noun am·pul·la \am-ˈp-lə, ˈam-ˌpyü-lə\
plural am·pul·lae \-ˌlē\

Medical Definition of AMPULLA

:  a saccular anatomic swelling or pouch: as a :  the dilatation containing a patch of sensory epithelium at one end of each semicircular canal of the ear b :  one of the dilatations of the lactiferous tubules of the mammary glands that serve as reservoirs for milk c (1) :  the middle portion of the fallopian tube (2) :  the distal dilatation of a vas deferens near the opening of the duct leading from the seminal vesicle d :  a terminal dilatation of the rectum just before it joins the anal canal


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