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Wall of the sacculeSemicircular canalsOtolith organsMaculaCochlear ductRotationalEndolymphaticSensoryAngularPosteriorLinearHeadStructuresLiesSpaceSensitiveMovementPositionDetectsVestibularCochleaEndolymphOtolithicCochlearSemicircular canalInner earGravityDetectOrganRotationHair cellsChange

Wall of the saccule3

• From the posterior wall of the saccule is given off a canal, the ductus endolymphaticus (endolymphatic duct). (wikipedia.org)
• The saccular macula is an elliptical thickened area of sensory epithelium that lies on the anterior vertical wall of the saccule. (medscape.com)
• In ears without MD, the Reissner's membrane and the membranous wall of the saccule were thinner than that of the utricle and of the lateral semicircular canal ( p (bvsalud.org)

Semicircular canals6

• The vestibular system includes the saccule, utricle, and the three semicircular canals. (wikipedia.org)
• The vestibular system , which is the system of balance, consists of 5 distinct end organs: 3 semicircular canals that are sensitive to angular accelerations (head rotations) and 2 otolith organs that are sensitive to linear (or straight-line) accelerations. (medscape.com)
• The peripheral vestibular apparatus consists of the saccule, utricle, and semicircular canals. (medscape.com)
• The 3 semicircular canals are small, ringlike structures: lateral or horizontal, superior or anterior, and posterior or inferior. (medscape.com)
• The vestibular sensory epithelium is located on the maculae of the saccule and utricle and the cristae of the semicircular canals. (medscape.com)
• The neurosensory structures involved in hearing and equilibrium are located in the membranous labyrinth: the organ of Corti is located in the cochlear canal, while the maculae of the utricle and the saccule and the ampullae of the semicircular canals are located in the posterior section. (cloudaccess.net)

Otolith organs3

• Otolithic Disorders refers to damage of the otolith organs, saccule and utricle that detect linear acceleration in the vertical and horizontal planes. (neuroequilibrium.in)
• The otolith organs, saccule and utricle sense linear acceleration in the vertical and horizontal planes. (neuroequilibrium.in)
• The otolith organs include the utricle and the saccule. (medscape.com)

Macula2

• The anterior part of the saccule exhibits an oval thickening, the macula acustica sacculi, or macula, to which are distributed the saccular filaments of the vestibular branch of the vestibulocochlear nerve, also known as the statoacoustic nerve or cranial nerve VIII. (wikipedia.org)
• The macula of the utricle lies mainly in the horizontal plane and is located in the utricular recess, which is the dilated anterior portion of the utricle. (medscape.com)

Cochlear duct4

• The membranous labyrinth is located within the bony labyrinth, and it includes two sacs (utricle and saccule), three semicircular ducts, and the cochlear duct. (anatomy.app)
• The vestibulocochlear apparatus contains two types of receptors located in the inner ear: the organ of Corti for receiving the sound stimulus - located in the cochlear duct, and the receptors of the vestibular apparatus for appreciation of the impact of gravitation (static balance) - located in the utricle and saccule, and acceleration (kinetic balance) - located in the semicircular ducts. (anatomy.app)
• It consists of an anterior chamber and the cochlear duct, which subserves hearing and connects by way of the round saccule with the peripheral vestibular apparatus. (medscape.com)
• CONCLUSION: Increases in endolymphatic pressure may cause a primary swelling of the apical cochlear duct and saccule, both of which have relatively thin membranes. (bvsalud.org)

Rotational1

• RESULTS: The VMGI can be measured during rotational, linear and combined head accelerations. (bvsalud.org)

Endolymphatic1

• OBJECTIVES: Our aim in this study was to characterize the morphology of the endolymphatic compartment on histopathology in individuals with Ménière's disease (MD) and to determine why hydrops of the saccule is more pronounced than that of other compartments of the inner ear in MD. METHODS: Temporal bones from 9 patients with idiopathic MD and from 10 individuals without MD/endolymphatic hydrops were examined. (bvsalud.org)

Sensory3

• The saccule is a bed of sensory cells in the inner ear. (wikipedia.org)
• When the head moves vertically, the sensory cells of the saccule are disturbed and the neurons connected to them begin transmitting impulses to the brain. (wikipedia.org)
• The saccule gathers sensory information to orient the body in space. (wikipedia.org)

Angular1

• Each canal is maximally responsive to angular motion in the plane in which it is situated and is paired with a canal on the contralateral side so that stimuli that are excitatory to one are inhibitory to the other. (medscape.com)

Posterior1

• They are oriented at right angles to each other and are situated so that the superior and posterior canals are at 45° angles to the sagittal plane and the horizontal canal is 30° to the axial plane. (medscape.com)

Linear3

• The saccule detects linear accelerations and head tilts in the vertical plane. (wikipedia.org)
• It primarily gathers information about linear movement in the vertical plane, including the force due to gravity. (wikipedia.org)
• The otolith system provides vital information about linear head acceleration in three dimensions (i.e., gravito-inertial forces) and the head's orientation relative to gravity. (elifesciences.org)

Head1

• The saccule, like the utricle, provides information to the brain about head position when it is not moving. (wikipedia.org)

Structures1

• The structures that enable the saccule to gather this vestibular information are the hair cells. (wikipedia.org)

Lies2

• The saccule is an almost globular-shaped sac that lies in the spherical recess on the medial wall of the vestibule. (medscape.com)
• The utricle is larger than the saccule and lies posterosuperiorly to it in the elliptical recess of the medial wall of the vestibule. (medscape.com)

Space1

• Hydrops in the utricle may occur less frequently because of a thicker wall, because of a functioning UEV, and when the saccule has already occupied most of the vestibular perilymphatic space. (bvsalud.org)

Sensitive2

• The difference between them is that the utricle is more sensitive to horizontal acceleration, whereas the saccule is more sensitive to vertical acceleration. (wikipedia.org)
• Furthermore, each canal is maximally sensitive to rotations that lie in the plane of the canal. (medscape.com)

Movement2

• The utricle senses motion in the horizontal plane (eg, forward-backward movement, left-right movement, or a combination thereof). (medscape.com)
• The saccule senses motions in the sagittal plane (eg, up-down movement). (medscape.com)

Position1

• We report a case with cupulolithiasis of the horizontal semicircular canal presenting with horizontal PSN in a sitting position, with implications for a new pathomechanism of PSN. (bvsalud.org)

Detects3

• The saccule detects linear accelerations and head tilts in the vertical plane. (wikipedia.org)
• The semicircular canals are responsible for detecting angular acceleration and the otolith organ detects the linear acceleration. (avmed.in)
• In humans, the utricle is oriented in a horizontal direction and detects motion in a horizontal plane, while the saccule is oriented in a vertical direction and detects motion in a vertical plane. (psychologic.science)

Vestibular11

• The vestibular system includes the saccule, utricle, and the three semicircular canals. (wikipedia.org)
• The saccule, or sacculus, is the smaller of the two vestibular sacs. (wikipedia.org)
• The anterior part of the saccule exhibits an oval thickening, the macula acustica sacculi, or macula, to which are distributed the saccular filaments of the vestibular branch of the vestibulocochlear nerve, also known as the statoacoustic nerve or cranial nerve VIII. (wikipedia.org)
• From the lower part of the saccule a short tube, the canalis reuniens of Hensen, passes downward and opens into the ductus cochlearis near its vestibular extremity. (wikipedia.org)
• The structures that enable the saccule to gather this vestibular information are the hair cells. (wikipedia.org)
• The vestibular system is composed of two primary components that include the semicircular canal system, which provides information about rotational movements of our heads, and the otoliths, which are small stones of calcium carbonate within the semicircular canals and also play a role in providing information about rotation as well as linear acceleration. (psychologic.science)
• As individuals move their heads from one position to another, the otoliths move in response to positional change and/or acceleration and in doing so, create a sheering force across the stereocilia, stimulating the vestibular system. (psychologic.science)
• As part of the inner ear, the vestibular system is responsible for sense of balance, which consists of three semicircular canals, the utricle, and the saccule. (bvsalud.org)
• It is well known that vestibular sensors include three semicircular canals (SCs), i.e., horizontal (HSC), anterior (ASC), posterior (PSC), and two otolithic organs: the saccule and the utricle. (audiologyonline.com)
• Finally, the posterior vestibular artery generates from the vestibulo-cochlear artery, providing blood supply to both PSC and saccule. (audiologyonline.com)
• The primary graviceptors are the vestibular organs, which include angular velocity (semicircular canals) and linear acceleration (otolith organs) sensors. (jneurosci.org)

Cochlea2

• It is secreted by the secretory cells of the stria vascularis of the cochlea and by the dark cells (present in the utricle and near the ampullated ends of semicircular ducts). (medicoapps.org)
• Whereas the first mostly supplies the utricle and both HSC and ASC, the latter mainly serves the saccule, PSC, and the cochlea, with slight possible interindividual differences. (audiologyonline.com)

Endolymph1

• An otolith organ has two endolymph filled sacs, the utricle and saccule. (avmed.in)

Otolithic2

• For this reason, the saccule is sometimes called an "otolithic organ. (wikipedia.org)
• in the saccule they are oriented away from the striola The tips of the stereocilia and kinocilium are embedded in a gelatinous otolithic membrane. (wikipedia.org)

Cochlear1

• In turn, the CCA divides into the vestibulocochlear artery, which serves PSC, the saccule, and the cochlear basal turn, and in the main cochlear artery supplying the rest of the cochlear neuroepithelium. (audiologyonline.com)

Semicircular canal1

• The temperature gradient provokes the stimulation of the horizontal semicircular canal and the consequent nystagmus. (juniperpublishers.com)

Inner ear1

• Benign paroxysmal positional vertigo is most likely caused by the abnormal movement or dislodging of the otoliths within the utricle and saccule of the inner ear. (psychologic.science)

Gravity3

• It primarily gathers information about linear movement in the vertical plane, including the force due to gravity. (wikipedia.org)
• The otolith organ is constantly subjected to the acceleration due to gravity. (avmed.in)
• The most common of these is the Epley maneuver, which uses deliberate movement of the head and gravity to reposition the otoliths within the utricle and saccule. (psychologic.science)

Detect1

• Both the SCC and the otolith organ use the movement of the hair cells to detect magnitude and direction of acceleration. (avmed.in)

Organ1

• After damage, the mammalian utricle partially restores the HC population and organ function, although regenerated HCs are primarily type II and immature. (bvsalud.org)

Rotation1

• The lowest reported threshold of perception of rotation is 0.035°/sec 2 , but can only be obtained with continuous acceleration after 20 to 40 seconds. (avmed.in)

Hair cells3

• Deformation of the hair cells is interpreted as acceleration. (avmed.in)
• We conditionally knocked out ß-catenin, a canonical Wnt signaling core protein, and found that the cilia orientation of hair cells was disordered with reduced number of hair cells in the utricle. (bvsalud.org)
• In conclusion, our results not only confirm that the regulation of canonical Wnt signaling affects the number of hair cells in the utricle but also provide evidence for its role in polarity development. (bvsalud.org)

Change1

• In this study, we found that canonical Wnt pathway-related genes are expressed in the early stage of development of the utricle and change dynamically. (bvsalud.org)