In the order from outside to inside, which is the correct sequence of ear sections?

In the order from outside to inside, which is the correct sequence of ear sections?

• A. Outer ear, middle ear, and inner ear
• B. Inner ear, outer ear, middle ear
• C. Middle ear, outer ear, inner ear
• D. Outer ear, inner ear, middle ear

Answer: (A)

From outside to inside, the ear sections follow this sequence: outer ear, then middle ear, then inner ear. The outer ear collects sound and channels it through the ear canal to the eardrum. The middle ear behind the eardrum contains the hammer, anvil, and stirrup that mechanically transmit and amplify those vibrations. The inner ear houses the cochlea, where those mechanical motions are transformed into neural signals that the brain interprets as sound. This order—outer ear first, then middle ear, then inner ear—reflects how sound is captured, amplified, and finally transduced into nerve impulses.

From outside to inside, the ear sections follow this sequence: outer ear, then middle ear, then inner ear. The outer ear collects sound and channels it through the ear canal to the eardrum. The middle ear behind the eardrum contains the hammer, anvil, and stirrup that mechanically transmit and amplify those vibrations. The inner ear houses the cochlea, where those mechanical motions are transformed into neural signals that the brain interprets as sound. This order—outer ear first, then middle ear, then inner ear—reflects how sound is captured, amplified, and finally transduced into nerve impulses.