What is cerumen commonly known as?

Cerumen is commonly known as earwax, which is a natural substance produced by the glands in the ear canal. Its main functions include protecting the skin of the ear canal, aiding in cleaning and lubrication, and providing some antimicrobial properties to help fight off infections. Cerumen helps to trap dust, debris, and microorganisms, preventing them from reaching the delicate structures of the inner ear.

The other terms presented have distinct meanings that do not relate to cerumen. An ear infection refers to a condition where bacteria or viruses infect the ear, which can lead to pain and inflammation. The eardrum, or tympanic membrane, is a thin membrane that separates the outer ear from the middle ear and plays a crucial role in hearing. The Eustachian tube is a passage that connects the middle ear to the back of the nose and helps regulate ear pressure and drain any fluid. Therefore, earwax is the only correct association with the term cerumen.