Question

Tympanic membrane is stretched over a cartilaginous ring called

• A. Tympanicus annulus
• B. Columella auris
• C. Stapes
• D. Fenestra ovalis

Answer 1

The correct option is A

Tympanicus annulus

Tympanic membrane is stretched over a cartilaginous ring called tympanicus annulus. Columella auris is a bony or cartilaginous rod that connects the tympanic membrane with the inner ear. This structure is present in amphibians, reptiles, and birds. The stapes is a bone in the middle ear of humans and other mammals. Fenestra ovalis is a small opening that functions as a link between the mammalian middle ear to the vestibule of the inner ear.