Which term is synonymous with the tympanic membrane?

Which term is synonymous with the tympanic membrane?

• A. Tympanic membrane
• B. Eardrum
• C. Oval window
• D. Cochlea

Answer: (B)

The eardrum is the same structure as the tympanic membrane. It’s a thin, cone-shaped membrane that forms the boundary between the external auditory canal and the middle ear. When sound waves strike it, the tympanic membrane vibrates and these vibrations are transmitted to the auditory ossicles (the small bones in the middle ear), helping to convert acoustic energy into mechanical energy that moves the inner ear. The terminology you’ll often see is that the tympanic membrane is simply called the eardrum. The oval window is a separate opening at the inner ear boundary where the stapes interfaces with the cochlea, and the cochlea is the spiral-shaped organ that finally converts those vibrations into neural signals.

The eardrum is the same structure as the tympanic membrane. It’s a thin, cone-shaped membrane that forms the boundary between the external auditory canal and the middle ear. When sound waves strike it, the tympanic membrane vibrates and these vibrations are transmitted to the auditory ossicles (the small bones in the middle ear), helping to convert acoustic energy into mechanical energy that moves the inner ear. The terminology you’ll often see is that the tympanic membrane is simply called the eardrum.

The oval window is a separate opening at the inner ear boundary where the stapes interfaces with the cochlea, and the cochlea is the spiral-shaped organ that finally converts those vibrations into neural signals.