columella auris


Also found in: Dictionary, Thesaurus, Encyclopedia.

columella auris

a bony or cartiliginous rod which connects the ear drum to the inner ear in reptiles, birds and some amphibians. It is homologous with the STAPES of mammals and the HYOMANDIBULA of fishes.

columella

pl. columellae [L.] a little column.

columella auris
a connecting rod between the avian eardrum and the perilymph of the inner ear via the rod's footplate.
Mentioned in ?