öronkanaler

Öronkanaler, or ear canals, are the passages within the ear that lead from the outer ear to the eardrum. In humans, the ear canal is approximately 2.5 centimeters long and about 7 millimeters in diameter. It is lined with skin that contains glands producing earwax, also known as cerumen. Earwax plays a crucial role in protecting the ear by trapping dust, debris, and microorganisms, and it also has some antimicrobial properties.

The ear canal's primary function is to conduct sound waves from the outside environment to the eardrum. Its shape and size help to amplify certain frequencies, contributing to our ability to hear. The canal also plays a role in protecting the delicate structures of the middle and inner ear from damage.

Conditions affecting the ear canal include infections like otitis externa (swimmer's ear), which is an inflammation of the canal often caused by water trapped in the ear. Blockages, such as excessive earwax buildup or foreign objects, can also impair hearing and cause discomfort. Proper hygiene, such as avoiding inserting objects into the ear canal, is important for maintaining ear health.