Ears
Ears
Ears (/ɪərz/) are organs that are designed for hearing and balance. They are part of the auditory system and are located on the sides of the head.
Etymology
The word "ear" comes from the Old English word "ēare," which has cognates in various other Germanic languages.
Anatomy of the Ear
The ear can be divided into three parts: the outer ear, the middle ear, and the inner ear.
Outer Ear
The outer ear consists of the pinna (the visible part of the ear) and the ear canal. The pinna collects sound waves and directs them into the ear canal.
Middle Ear
The middle ear contains three small bones known as the ossicles: the malleus, the incus, and the stapes. These bones amplify the sound waves and send them to the inner ear.
Inner Ear
The inner ear contains the cochlea, which is responsible for hearing, and the vestibular system, which is responsible for balance.
Function of the Ear
The primary function of the ear is to convert sound waves into electrical signals that the brain can interpret as sound. The ear also plays a crucial role in maintaining balance.
Related Terms
- Audiology: The study of hearing, balance, and related disorders.
- Otitis: Inflammation of the ear.
- Tinnitus: A condition characterized by ringing or buzzing in the ears.
- Hearing loss: Partial or total inability to hear.
See Also
External links
- Medical encyclopedia article on Ears
- Wikipedia's article - Ears
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