Which structure is lined with glands that secrete cerumen to lubricate the ear canal?

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Multiple Choice

Which structure is lined with glands that secrete cerumen to lubricate the ear canal?

Explanation:
The ear canal (external auditory canal) is lined with ceruminous glands that secrete cerumen. This waxy substance lubricates the canal, helps trap dust and microbes, and provides protection. The eardrum is a thin membrane without glands, and the cochlea is in the inner ear, not involved in cerumen production.

The ear canal (external auditory canal) is lined with ceruminous glands that secrete cerumen. This waxy substance lubricates the canal, helps trap dust and microbes, and provides protection. The eardrum is a thin membrane without glands, and the cochlea is in the inner ear, not involved in cerumen production.

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