What's the difference between otolith and utricle?
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.
Utricle
Definition:
(n.) A little sac or vesicle, as the air cell of fucus, or seaweed.
(n.) A microscopic cell in the structure of an egg, animal, or plant.
(n.) A small, thin-walled, one-seeded fruit, as of goosefoot.
(n.) A utriculus.
Example Sentences:
(1) These results demonstrate pauses in the maturation process of the vestibular receptors and show that the utricles develop one week in advance of the cristae.
(2) Our patient had anomalous configuration of lateral semicircular canal and an abnormally high location of the utricle and saccule.
(3) Cristae hair bundles are less developed than those of the utricles on the 1st day after birth, with evidence of ciliogenesis being present in the cristae.
(4) The surfaces of the utricle and the lateral cupula were depressed by a fine glass pipette.
(5) A series of 88 male patients with prostatic utricle cysts (müllerian duct) has been compiled by adding our 3 patients to 85 cases reported.
(6) The utricle and its nerve were isolated with the anterior and the lateral semicircular canal ampullae in frog Ringer's solution.
(7) The theories on development of congenital urethral diverticula are considered and the importance of the clinical, radiological, endoscopical and histological examination for the differential diagnosis of the acquired diverticula and enlarged utricle is emphasised.
(8) In ketamine anesthetized cats, the contralateral labyrinth, the ipsilateral utricle, the ipsilateral horizontal and anterior semicircular canal nerves were completely destroyed, leaving the ipsilateral saccule intact.
(9) Occlusion of the anterior vestibular artery has resulted in severe degeneration and new bone formation limited to the utricle, saccule, and superior and lateral semicircular canals.
(10) The distribution of the pathological hair cells in the utricle was more general than in the ampullae.
(11) Urethrography revealed the prostatic utricle in the second case.
(12) Leaving age-related changes out of account, the utricle and horizontal canal ampulla appeared normal in all ears except one in which the ampulla was replaced by tumor tissue.
(13) The utricle and the proximal portion of the endolymphatic duct were studied using light and electron microscopy.
(14) Neogenesis and growth of otoconia appear to occur postnatally, with different characteristic growth potentials for those of the saccule and the utricle.
(15) By means of electron microscopy, it was shown, that this layer is identical with the host-cell cytoplasm enclosing utricle-like a giant, membrane-bound parasitophorus vacuole, which in both types of schizonts was closely filled with parasites and an enclosing ground substance.
(16) K+-NPPase activity was most intense in the strial marginal cell, followed by the dark cell of the ampulla and the utricle.
(17) The embryology of the utricle and the relationship of the dilated utricle to the müllerian duct regression factor are discussed.
(18) In hatchlings, tannic acid, which precipitates mainly proteoglycans, stained the mineralizing GMs of the utricle, saccule and lagenar macula darker than it did the nonmineralizing GMs of the cristae and tectorial membrane of the basilar papilla, while Alcian blue and ruthenium red stained all GMs in the vestibule and basilar papilla almost to the same degree.
(19) Multiple anomalies include: abnormal narrowing of the crus commune-utricle junction, superiorly located crus commune and posterior semicircular canal, underdeveloped modiolus, absence of the bony septum between the middle and apical coil (existence of scala communis in left ear), abnormally small internal auditory meatus, and abnormal direction of internal auditory canal, large cartilaginous mass around the superior semicircular canal and in the tympanic end of the fissula ante fenestram, small facial nerve, large facial bony canal dehiscence, anomalic stapes, etc.
(20) Marginal cells from the stria vascularis and dark cells from the posterior wall of the utricle were isolated, dissociated and placed in culture medium.