| ampullary aneurysm | A saclike bulging on one side of an artery. Synonym: ampullary aneurysm. (05 Mar 2000) |
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| ampullary crest | An elevation on the inner surface of the ampulla of each saemicircular duct; filaments of the vestibular nerve pass through the crista to reach hair cells on its surface; the hair cells are capped by the cupula, a gelatinous protein-polysaccharide mass. Synonym: crista ampullaris, acoustic crest, transverse septum. (05 Mar 2000) |
| ampullary crura of saemicircular ducts | The dilated ends of the three saemicircular ducts, each of which contains a specialised thickening of the epithelium known as the ampullary crest. Synonym: crura membranacea ampullaria ductus saemicircularis, ampullary limbs of saemicircular ducts. (05 Mar 2000) |
| ampullary folds of uterine tube | One of the folds of mucous membrane at the fimbriated extremity of the uterine tube. Synonym: plicae ampullares tubae uterinae. (05 Mar 2000) |
| ampullary limbs of saemicircular ducts | The dilated ends of the three saemicircular ducts, each of which contains a specialised thickening of the epithelium known as the ampullary crest. Synonym: crura membranacea ampullaria ductus saemicircularis, ampullary limbs of saemicircular ducts. (05 Mar 2000) |
| ampullary sulcus | The groove on the external surface of the ampulla of each saemicircular duct where the nerve enters the crista ampullaris. Synonym: sulcus ampullaris. (05 Mar 2000) |
| cap of the ampullary crest | A gelatinous mass that overlies the hair cells of the ampullary crests of the saemicircular ducts; movement of endolymphatic fluid causes the cupula to move across the hair cells of the ampullary crest. Synonym: cap of the ampullary crest. (05 Mar 2000) |
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