What is the function of cerumen in the ear?

What is the function of cerumen in the ear?

• A. Amplifies sound
• B. Produces ear wax
• C. Traps debris and antibacterial properties
• D. Detects sound

Answer: (C)

Cerumen protects the ear by trapping debris and providing antibacterial properties. The waxy mix produced by ceruminous and sebaceous glands in the outer ear canal forms a sticky, slightly acidic barrier that catches dust, skin flakes, and other particles before they can reach the more delicate tympanic membrane. Its lipids and enzymes, including lysozyme, create antimicrobial activity that helps reduce infection risk. In addition, cerumen moisturizes and lubricates the canal, helping prevent drying and itching, and its gradual outward migration helps move trapped debris toward the opening to be washed away. It does not serve to amplify or detect sound.

Cerumen protects the ear by trapping debris and providing antibacterial properties. The waxy mix produced by ceruminous and sebaceous glands in the outer ear canal forms a sticky, slightly acidic barrier that catches dust, skin flakes, and other particles before they can reach the more delicate tympanic membrane. Its lipids and enzymes, including lysozyme, create antimicrobial activity that helps reduce infection risk. In addition, cerumen moisturizes and lubricates the canal, helping prevent drying and itching, and its gradual outward migration helps move trapped debris toward the opening to be washed away. It does not serve to amplify or detect sound.