| vestibular ocular reflex | <clinical sign> Reflex movement of the eyes in the opposite direction to that which the head is moved, e.g., the eyes being lowered as the head is raised, and the reverse (Cantelli's sign); an indication of functional integrity of the brainstem tegmental pathways and cranial nerves involved in eye movement. Synonym: vestibular ocular reflex. (05 Mar 2000) |
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| vestibular organ | Collective term for the utricle, saccule, and saemicircular ducts of the membranous labyrinth, each having a single patch of ciliated receptor epithelium innervated by the vestibular nerve: macula of sacculus, macula of utriculus, and cristae of the saemicircular ducts. (05 Mar 2000) |
| vestibular part of vestibulocochlear nerve | <anatomy, nerve> The vestibular part of the acoustic (8th cranial) nerve. The vestibular nerve fibres arise from neurons of scarpa's ganglion and project peripherally to vestibular hair cells and centrally to the vestibular nuclei of the brainstem. These fibres mediate the sense of balance and head position. (12 Dec 1998) |
| vestibular root | Radix vestibularis, radix superior nervi vestibulocochlearis, superior root of vestibulocochlear nerve, vestibular root of vestibulocochlear nerve. (05 Mar 2000) |
| vestibular root of vestibulocochlear nerve | Radix vestibularis, radix superior nervi vestibulocochlearis, superior root of vestibulocochlear nerve, vestibular root of vestibulocochlear nerve. (05 Mar 2000) |
| vestibular schwannoma | <oncology, tumour> This is a benign tumour of the 8th cranial nerve that affects approximately 1 out of 100,000 people. This tumour arises from the myelin forming Schwann cells that coat the 8th cranial nerve (acoustic nerve). Clinical presentation usually includes hearing deficit. Diagnosis can be made with auditory evoked potentials and/or MRI scanning of the brain. Vertigo and tinnitus may be associated symptoms. Surgical removal of this tumour involves dissection, cautery and obliteration with laser. (27 Sep 1997) |
| vestibular screen | A screen made of acrylic resin that covers the labial or buccal surfaces of one or both dental arches; used to treat oral habits and to stimulate tooth movement by using perioral muscle force. (05 Mar 2000) |
| vestibular surface of tooth | The surface of a tooth that faces the buccal or labial mucosa of vestibule of the mouth; opposite to the lingual surface of tooth. Synonym: facies vestibularis dentis, facies facialis dentis, buccal surface, facial surface of tooth, facies buccalis, facies labialis, labial surface. (05 Mar 2000) |
| vestibular system | <anatomy> The organ of the inner ear containing several three semicircular ducts at right angles to one another, helps keep the body balanced. (09 Oct 1997) |
| vestibular veins | Veins draining the saccule and utricle; they are tributaries of both the labyrinthine veins and the vein of the vestibular aqueduct. Synonym: venae vestibulares. (05 Mar 2000) |
| vestibular wall of cochlear duct | The membrane separating the cochlear duct from the vestibular canal; it consists of squamous epithelial cells with microvilli toward the ductus, a basement membrane, and a thin layer of connective tissue toward the scala. Synonym: membrana vestibularis, paries vestibularis ductus cochlearis, Reissner's membrane, vestibular wall of cochlear duct. (05 Mar 2000) |
| vestibular window | An oval opening on the medial wall of the tympanic cavity leading into the vestibule, closed in life by the foot of the stapes. Synonym: fenestra of the vestibule, fenestra ovalis, oval window, vestibular window. (05 Mar 2000) |
| vestibularis | Synonym: vestibular, vestibular. Origin: L. (05 Mar 2000) |
| vestibulate | Possessing a vestibule. (05 Mar 2000) |
| vestibule | The porch or entrance into a house; a hall or antechamber next the entrance; a lobby; a porch; a hall. Vestibule of the ear. <anatomy> A train of passenger cars having the space between the end doors of adjacent cars inclosed, so as to admit of leaving the doors open to provide for intercommunication between all the cars. Synonym: Hall, passage. Vestibule, Hall, Passage. A vestibule is a small apartment within the doors of a building. A hall is the first large apartment beyond the vestibule, and, in the United States, is often long and narrow, serving as a passage to the several apartments. In England, the hall is generally square or oblong, and a long, narrow space of entrance is called a passage, not a hall, as in America. Vestibule is often used in a figurative sense to denote a place of entrance. "The citizens of Rome placed the images of their ancestors in the vestibules of their houses." Origin: L. Vestibulum, of uncertain origin: cf. F. Vestibule. Source: Websters Dictionary (01 Mar 1998) |
| vestibule |
bony cavity of the inner ear. vocal cords (vocal folds) - muscularized folds of mucous membrane that extend from the larynx (voice box) wall; enclosed in elastic vocal ligament and muscle that control the tension and rate of vibration of the cords as air passes through them. voice - sound produced by air passing out through the larynx and upper respiratory tract.
출처: www.chw.org/display/PPF/DocID/1533/router.asp
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| vesicle |
A swollen cell; the swollen apices of some conidiophores or sporangiophores.
출처: www.ec.upstate.edu/medtech/microb/glossary.htm
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| vestigial |
Occurring in a rudimentary condition, as a result of evolutionary reduction from a more elaborated, functional character state in an ancestor.
출처: evolution.unibe.ch/teaching/GlossarE.htm
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| vestibular |
Refers to signals from the middle ear; vestibular sensations include floating, low-frequency vibrating, and similar sensations.
출처: www.third-plateau.org/faq/dxm_glossary.shtml
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| vesicle |
A floating gas-filled bubble or bladder-like structure. In algae.
출처: www.mesa.edu.au/friends/seashores/glossary.html
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