The pinna and the meatus are part of which region of the ear?

The pinna and the meatus are part of which region of the ear?

• A. Inner ear
• B. Cochlea
• C. Outer ear
• D. Middle ear

Answer: (C)

Sound capture and initial processing occur in the outer ear, which includes the visible pinna and the external auditory canal (meatus). The pinna helps collect sound and aids in localizing its source, directing waves into the external auditory canal until they reach the eardrum. That boundary marks the end of the outer ear and the start of the middle ear, where the tiny bones reside, with deeper structures like the cochlea in the inner ear responsible for actual hearing. So, the pinna and the meatus belong to the outer ear.

Sound capture and initial processing occur in the outer ear, which includes the visible pinna and the external auditory canal (meatus). The pinna helps collect sound and aids in localizing its source, directing waves into the external auditory canal until they reach the eardrum. That boundary marks the end of the outer ear and the start of the middle ear, where the tiny bones reside, with deeper structures like the cochlea in the inner ear responsible for actual hearing. So, the pinna and the meatus belong to the outer ear.