Otolith

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Otoliths are small, calcified structures found within the inner ear of vertebrates. They play a crucial role in the vestibular system, contributing to the sense of balance and spatial orientation.

Anatomy[edit | edit source]

Otoliths are located in the saccule and utricle of the inner ear, two structures collectively known as the otolith organs. Each otolith is composed of a protein matrix and calcium carbonate crystals. The size and shape of otoliths can vary greatly among different species of vertebrates.

Function[edit | edit source]

The primary function of otoliths is to detect changes in gravity and linear acceleration. When the head moves, the otoliths shift position, stimulating hair cells in the otolith organs. These cells then send signals to the brain, which interprets the information and adjusts the body's position and movement accordingly.

Clinical significance[edit | edit source]

Abnormalities in the otoliths can lead to a variety of balance disorders. For example, benign paroxysmal positional vertigo (BPPV) is a condition caused by tiny calcium particles clumping up in the inner ear canals. Other conditions, such as Meniere's disease and vestibular neuritis, can also affect the function of the otoliths.

Research[edit | edit source]

Otoliths are a subject of ongoing research in various fields, including neuroscience, otolaryngology, and paleontology. In paleontology, for instance, the study of fossilized otoliths can provide valuable information about extinct species of fish.

See also[edit | edit source]

Otolith Resources
Wikipedia
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Contributors: Prab R. Tumpati, MD