What does the ear canal contain?

The ear canal contains cilia, ceruminous glands, and sebaceous glands, which all play important roles in the overall function and health of the ear.

Cilia are small hair-like structures that line the ear canal, and they help in the movement of debris and earwax out of the canal, which contributes to the self-cleaning ability of the ear.

Ceruminous glands produce earwax, also known as cerumen, which serves to lubricate and protect the ear canal. It traps dust, microorganisms, and other particles, preventing them from reaching the eardrum and potentially causing harm or infection.

Sebaceous glands, which are present in the ear canal, produce oil that helps to keep the skin in the ear canal moisturized and can also contribute to the composition of earwax.

Since all of these components are present in the ear canal and work together to maintain ear health, the correct answer includes all of them.