Which structure is a component of the outer ear?

Which structure is a component of the outer ear?

• A. External auditory canal
• B. Malleus
• C. Cochlea
• D. Semicircular canals

Answer: (A)

The outer ear consists of structures that collect and channel sound into the ear, and the external auditory canal is one of its main components. This canal runs from the opening of the ear to the tympanic membrane and helps protect the delicate middle ear while guiding sound inward. The other two structures listed belong to the inner ear (cochlea for hearing and semicircular canals for balance) and the middle ear (malleus is one of the tiny auditory bones). So the external auditory canal fits as part of the outer ear because it directly participates in capturing and directing sound toward the eardrum.

The outer ear consists of structures that collect and channel sound into the ear, and the external auditory canal is one of its main components. This canal runs from the opening of the ear to the tympanic membrane and helps protect the delicate middle ear while guiding sound inward. The other two structures listed belong to the inner ear (cochlea for hearing and semicircular canals for balance) and the middle ear (malleus is one of the tiny auditory bones). So the external auditory canal fits as part of the outer ear because it directly participates in capturing and directing sound toward the eardrum.