keskivälikorvan

Keskivälikorva refers to the middle ear, a crucial part of the auditory system located behind the eardrum. It is an air-filled cavity within the temporal bone of the skull. The primary function of the middle ear is to efficiently transmit sound vibrations from the outer ear to the inner ear. This is achieved through a chain of three tiny bones called ossicles: the malleus (hammer), incus (anvil), and stapes (stirrup). The malleus is attached to the eardrum, and it transmits vibrations to the incus, which in turn passes them to the stapes. The stapes is connected to the oval window, an opening into the cochlea, which is part of the inner ear.

Another important structure within the middle ear is the Eustachian tube, also known as the auditory tube. This tube connects the middle ear to the nasopharynx, the upper part of the throat. The Eustachian tube's main role is to equalize pressure between the middle ear and the outside environment. This pressure equalization is essential for proper eardrum vibration and sound conduction. It also helps to drain mucus from the middle ear.

Various conditions can affect the middle ear, leading to hearing loss or discomfort. Otitis media, or middle ear infection, is a common ailment, particularly in children, characterized by inflammation and fluid buildup. Other issues include otosclerosis, a condition where abnormal bone growth in the middle ear affects ossicle movement, and tympanic membrane perforation, a hole in the eardrum. Understanding the anatomy and function of the middle ear is vital for diagnosing and treating these problems.