| 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) |
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| crura | The plural of crus. (05 Mar 2000) |
| crura membranacea ampullaria ductus saemicircularis | 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) |
| crura of bony saemicircular canals | The extremities of the bony saemicircular canals in which the corresponding membranous limbs of the saemicircular ducts are located; they are the common bony crus, simple bony crus, and ampullary bony crus. Synonym: crura ossea canalium saemicircularium, limbs of bony saemicircular canals. (05 Mar 2000) |
| crura ossea canalium saemicircularium | The extremities of the bony saemicircular canals in which the corresponding membranous limbs of the saemicircular ducts are located; they are the common bony crus, simple bony crus, and ampullary bony crus. Synonym: crura ossea canalium saemicircularium, limbs of bony saemicircular canals. (05 Mar 2000) |
| annular ligament of the stapes | A ring of elastic fibres that attaches the base of the stapes to the margin of the fenestra vestibuli. Synonym: ligamentum annulare stapedis. (05 Mar 2000) |
| anterior crus of stapes | The anterior of the two delicate curving limbs of the stapes that pass from the head of the bone to the base or footplate. Synonym: crus anterius stapedis, anterior limb of stapes. (05 Mar 2000) |
| anterior limb of stapes | The anterior of the two delicate curving limbs of the stapes that pass from the head of the bone to the base or footplate. Synonym: crus anterius stapedis, anterior limb of stapes. (05 Mar 2000) |
| base of stapes | The flat portion of the stapes that fits in the oval window. Synonym: basis stapedis, footplate, foot-plate. (05 Mar 2000) |
| posterior crus of stapes | The posterior of the two delicate limbs of the stapes that connect the head and base or footplate of the bone. Synonym: crus posterius stapedis, posterior limb of stapes. (05 Mar 2000) |
| posterior limb of stapes | The posterior of the two delicate limbs of the stapes that connect the head and base or footplate of the bone. Synonym: crus posterius stapedis, posterior limb of stapes. (05 Mar 2000) |
| head of stapes | The portion of the stapes that articulates with the lenticular process of the incus. Synonym: caput stapedis. (05 Mar 2000) |
| stapes | One of three ossicles of the middle ear. (27 Sep 1997) |
| stapes mobilization | An operation to remobilise the footplate of the stapes to relieve conductive hearing impairment caused by its immobilization through otosclerosis or middle ear disease. (12 Dec 1998) |
| stapes mobilization operation | Now infrequently used operation involving fracture of tissue immobilizing the stapes to restore hearing; especially used in patients with otosclerosis. (05 Mar 2000) |