What's the difference between otoconium and otolith?
Otoconium
Definition:
Example Sentences:
(1) The otoconium genesis was evaluated by morphometric procedures using transmission and scanning electron-microscopic techniques for human fetuses of 50, 110, 134, 173, 210, 220 and 232 mm crown-rump length.
(2) It was determined that each otoconium formed as a result of the segmentation of the immature otolithic membrane, and that the calcium responsible for otoconium calcification was incorporated into the organic matrix of each otoconium in the form of small electron-dense granules (20-150 nm in diameter).
(3) In the chick (Gallus domesticus) embryo, otoconium formation started first over the macula sacculi around the 4th day of incubation, and a day later over the macula utriculi.
(4) There were also several otoconial abnormalities, such as the appearance of only a single giant otoconium, or from several to dozens of giant otoconia, and rough, spongy-surfaced global substances entirely covering the maculae.
(5) The reaction of lectin was more intense in the electronic dense zone of the otoconium than in the electronic lucent zone at every stage of the chick embryos.
(6) By analogy to inorganic crystals of calcite, it would seem that the typical otoconium grows on the end faces but growth on the side faces is suppressed by some unknown chemical factor.
Otolith
Definition:
(n.) Alt. of Otolite
Example Sentences:
(1) However, a disturbance of the development of the otolithic membrane and otoconia should be noted.
(2) The chicks were killed on the third day posthatching, and the surfaces of the otolithic organs were observed under a scanning electron microscope.
(3) These findings imply that otolithic afferents, unlike those from the semicircular canals, do not interact with neural centres mediating visual localization.
(4) The electrical activity of single trochlear motoneurons (TMns) and axons of second order vestibular neurons presumably terminating on these motoneurons were studied during natural stimulation of semicircular canals and otolith organs in cats anesthetized with Ketamine.
(5) The other major response class was characterized by a large gain increase and a phase lag of as much as 180 degrees as frequency increased; such response dynamics have been previously observed in otolith-evoked neck and forelimb reflexes.
(6) This paper reviews previous findings and introduces new material about otolith end organs that help us to understand their functioning and development.
(7) The sensation of limited body tilt has been attributed to conflict between visually-induced vection, and otolithic and somatosensory graviceptive information which indicates that the body has not moved.
(8) Sixty-six percent of the vestibular nerve fibers originating from the otolith organs responded to the caloric stimulation.
(9) Any variations of the nystagmus duration (increasing or decreasing) could result from different changes of the otolith signals from the two labyrinths.
(10) The subcupular meshwork may play an important role in transmitting the shear strain of the otolithic membrane to all the ciliary bundles and may also exert an additional dampening effect to prevent unwanted vibration.
(11) The present space experiment was aimed at studying the influence of the absence of gravity stimulation on the otoliths, by comparing VOR gain and phase in space and on ground.
(12) This is in accord with neurophysiological data of otolith and somatosensory function.
(13) Otolithic contribution to this reflex has been taken into consideration.
(14) Otolith development was complete by day 18 of gestation in control mouse fetuses.
(15) These results proved that the otolithic organs are not only able to promote but also to inhibit visual function.
(16) The results of canal-otolith interaction did not depend directly on enhancement or diminishing of the otolith afferentation but rather on a relative amount of the otolith signal alterations from the two labyrinths.
(17) (A pattern in this context is an array of signals emanating from the otoliths.
(18) The responses from isolated single otolith afferent fibers were obtained to small angle sinusoidal pitch and roll tilts in anesthetized gerbils.
(19) Otolithic responses were tonic, phasic-tonic, and phasic in nature.
(20) Furthermore, the disintegration of information from the neck position receptors from those of the otolith system can lead to additional illusory positional sensations.