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Related to Otolith organ: utriculus, Saccule and utricle


One of the small calcareous particles found in the inner ear of many vertebrates, especially fishes, which are involved in determining body orientation and sometimes in perceiving sound.

o′to·lith′ic adj.


1. (Zoology) any of the granules of calcium carbonate in the inner ear of vertebrates. Movement of otoliths, caused by a change in position of the animal, stimulates sensory hair cells, which convey the information to the brain
2. (Zoology) another name for statolith1
ˌotoˈlithic adj


(ˈoʊt l ɪθ)

1. a calcareous concretion in the inner ear of lower vertebrates.


a stonelike concretion in the inner ear of some vertebrates, as the whale.
See also: Stones
References in periodicals archive ?
This is the somatogravic illusion in which the otolith organs in your ear behave as if you were tilting your head backwards.
8) The vestibular system consists of five end organs: three semicircular canals and two otolith organs.
Thus it is reasonable to assume that the halibut larvae are subjected to weightlessness or postural control, and their otolith organs are sensitive to changes in position.
Much of his early research focused on understanding how the brain processes ambiguous sensory information, with a specific focus on how signals from the otolith organs in the inner ear are interpreted and processed by the nervous system.