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Question

The waxy substance which coats the surface of the auditory canal is produced by


A

Zeis glands

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B

Parotid glands

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C

Meibomian glands

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D

Ceruminous glands

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Solution

The correct option is D

Ceruminous glands


The ceruminous glands in the skin of the human external auditory canal are modified apocrine glands, which, together with sebaceous glands, produce the cerumen, the ear wax. Cerumen plays an important role in the protection of the ear canal against physical damage and microbial invasion.


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