korvakäytävät

Korvakäytävät, also known as ear canals, are the passages that lead from the outer ear to the eardrum. In humans, the external auditory canal is approximately 2.5 centimeters long and 0.7 centimeters in diameter. It is lined with skin that contains glands producing earwax, a substance that helps protect the ear canal by trapping dust and foreign particles and has antibacterial properties. The ear canal also contains small hairs that further prevent debris from reaching the eardrum.

The primary function of the korvakäytävät is to conduct sound waves from the outside environment to the tympanic membrane, or eardrum. The shape of the ear canal also helps to amplify certain frequencies, particularly those in the speech range, which aids in our ability to hear and understand spoken language. The ear canal is a delicate structure, and it is important to avoid inserting objects into it, as this can damage the ear canal or the eardrum and potentially lead to hearing loss or infection.