otolithic


Also found in: Medical, Encyclopedia.
Related to otolithic: utriculus, utricles

o·to·lith

 (ō′tə-lĭth′)
n.
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.
References in periodicals archive ?
The inclusion of the VEMP test into the neuro-otological test battery enables a better evaluation of otolithic organ functions (4).
Some people also experience 'drop attacks' or extreme vertigo that causes them to lose their balance and fall, also known at Tumarkin's otolithic crisis,' he added.
Their topics include early life history, feeding ecology, the formation of a Pacific bluefin tuna fishing ground on their spawning grounds around Ryukyu Islands and implications of a relationship with mesoscale eddies, otolithic geochemical analysis for stock discrimination and migratory ecology of tuna species, new insights into reproduction in wild and captive species, and a method for measuring the swimming behavior of Pacific bluefin tuna.
However, it goes a step further to reposition otolithic debris away from the ampulla of the posterior canal, rolling it through the canal and depositing it in the utricle, where it will not stimulate nerve endings and produce symptoms.
Comitant deviation occurs after unilateral insult to the otolithic pathway, in which anterior and posterior semicircular canals are damaged equally.
If the patient was not experiencing vertigo on the second position, the head used to be shaken once or twice in an attempt to free otolithic debris.
In 1998, NASA sent an oyster toadfish into space to investigate the effects of microgravity on the development of otolithic organs.
All otoliths were rinsed in water, rubbed clean to remove the otolithic membrane, placed in vials, and dried for at least seven days.