located in located in produced by produced by apocrine sweat gland sweat external acoustic meatus cerumen ENVO:02000028 The yellow or brown waxy secretions produced by vestigial apocrine sweat glands in the external ear canal[MESH]. cerumenal MESH:D002571 cerumenous Cerumen keeps the eardrum pliable, lubricates and cleans the external auditory canal, waterproofs the canal, kills bacteria, and serves as a barrier to trap foreign particles (dust, fungal spores, etc.) by coating the guard hairs of the ear, making them sticky. UBERON:0002297 FMA:79869 Wikipedia:Earwax earwax ear wax UMLS:C0740486 NCIT:C32293 GAID:1158 MA:0002506