kuulmekäigust
Kuulmekäik refers to the external auditory canal, the passage that leads from the auricle (outer ear) to the tympanic membrane (eardrum). It is a crucial part of the human auditory system responsible for conducting sound waves from the environment into the middle ear. The shape and length of the kuulmekäik vary slightly between individuals. Its lining is covered with skin that contains specialized glands, including ceruminous glands that produce earwax, and sebaceous glands. Earwax plays a protective role, trapping dust and foreign particles and preventing them from reaching the eardrum. It also possesses antibacterial properties and helps to moisturize the skin of the canal. The kuulmekäik is also lined with fine hairs that further assist in trapping debris. The diameter of the canal is narrowest at its inner end, just before it reaches the eardrum. Inflammation of the kuulmekäik is known as external otitis, commonly referred to as swimmer's ear. This condition can be caused by water trapped in the ear, leading to bacterial or fungal infections. Blockages within the kuulmekäik, such as excessive earwax buildup or foreign objects, can impair hearing and may require medical attention for removal. The overall health and patency of the kuulmekäik are essential for effective sound transmission and maintaining a healthy ear environment.