| CA | anterior commissure [Lat. commissura anterior]; calcium antagonist; California [rabbit]; cancer; Can... |
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| HSAS | hydrocephalus due to stenosis of aqueduct of Sylvius; hypertrophic subaortic stenosis |
| LVAS | Large Vestibular Aqueduct Syndrome |
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| CA | cochlear aqueduct |
| VA | vestibular aqueduct |
| aqueduct veil | A membrane obstructing the sylvian aqueduct, causing a noncommunicating hydrocephalus. (05 Mar 2000) |
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| veil | 1. Something hung up, or spread out, to intercept the view, and hide an object; a cover; a curtain; especially, a screen, usually of gauze, crape, or similar diaphnous material, to hide or protect the face. "The veil of the temple was rent in twain." (Matt. Xxvii. 51) "She, as a veil down to the slender waist, Her unadorned golden tresses wore." (Milton) 2. A cover; disguise; a mask; a pretense. "[I will] pluck the borrowed veil of modesty from the so seeming Mistress Page." (Shak) 3. <botany> The calyptra of mosses. A membrane connecting the margin of the pileus of a mushroom with the stalk; called also velum. 4. A covering for a person or thing; as, a nun's veil; a paten veil; an altar veil. 5. <zoology> Same as Velum. To take the veil, to receive or be covered with, a veil, as a nun, in token of retirement from the world; to become a nun. Origin: OE. Veile, OF. Veile, F. Voile, L. Velum a sail, covering, curtain, veil, probably fr. Vehere to bear, carry, and thus originally, that which bears the ship on. See Vehicle, and cf. Reveal Alternative forms: vail. Source: Websters Dictionary (01 Mar 1998) |
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| veil cell | An antigen-presenting cell that has veil-like cytoplasmic processes and circulates in the blood and lymph. Synonym: veiled cells. (05 Mar 2000) |
| Sattler's veil | A diffuse oedema of the corneal epithelium that may develop after wearing contact lenses. (05 Mar 2000) |
| Jackson's veil | A thin vascular membrane or veil-like adhesion, covering the anterior surface of the ascending colon from the caecum to the right flexure; it may cause obstruction by kinking of the bowel. Synonym: Jackson's veil. (05 Mar 2000) |
| aqueduct | 1. A conductor, conduit, or artificial channel for conveying water, especially one for supplying large cities with water. The term is also applied to a structure (similar to the ancient aqueducts), for conveying a canal over a river or hollow; more properly called an aqueduct bridge. 2. <anatomy> A canal or passage; as, the aqueduct of Sylvius, a channel connecting the third and fourth ventricles of the brain. Origin: F. Aqueduc, OF. Aqueduct (Cotgr), fr. L. Aquaeductus; aquae, gen. Of aqua water + ductus a leading, ducere to lead. See Aqua, Duke. Source: Websters Dictionary (01 Mar 1998) |
| aqueduct of cerebrum | An ependymal-lined canal in the mesencephalon about 20 mm long, connecting the third to the fourth ventricle. Synonym: aqueductus cerebri, aqueduct of cerebrum, aqueductus sylvii, iter a tertio ad quartum ventriculum, sylvian aqueduct. (05 Mar 2000) |
| aqueduct of sylvius | A canal between two of the cavities (called the third and fourth ventricles) in the brain through which cerebrospinal fluid passes. (12 Dec 1998) |
| vein of cochlear aqueduct | It drains the cochlea, sacculus, and part of the utricules, and empties into the superior bulb of the jugular vein by accompanying the perilymphatic duct through the cochlear canaliculus. Synonym: vena aqueductus cochleae, vein of cochlear aqueduct, vena canaliculi cochleae. (05 Mar 2000) |
| vein of vestibular aqueduct | A small vein accompanying the endolymphatic duct; it drains much of the vestibular portion of the labyrinth and terminates in the inferior petrosal sinus. Synonym: vena aqueductus vestibuli. (05 Mar 2000) |
| vestibular aqueduct | <anatomy> A small bony canal linking the vestibule of the inner ear to the posterior part of the internal surface of the petrous temporal bone. It surrounds the endolymphatic duct. (12 Dec 1998) |
| cerebral aqueduct | An ependymal-lined canal in the mesencephalon about 20 mm long, connecting the third to the fourth ventricle. Synonym: aqueductus cerebri, aqueduct of cerebrum, aqueductus sylvii, iter a tertio ad quartum ventriculum, sylvian aqueduct. (05 Mar 2000) |
| cochlear aqueduct | A channel containing perilymph passing through the temporal bone, connecting the scala tympani of the cochlea to the subarachnoid space. (12 Dec 1998) |
| Cotunnius' aqueduct | aqueduct of vestibule |
| sylvian aqueduct | Aqueduct of vestibule, a bony canal running from the vestibule and opening on the posterior surface of the petrous portion of the temporal bone, giving passage to the endolymphatic duct and a small vein. Synonym: aqueductus cotunnii, aqueductus vestibuli, Cotunnius' aqueduct, Cotunnius' canal, cerebral aqueduct. (05 Mar 2000) |
| opening to cerebral aqueduct | Entrance to the cerebral aqueduct (of Sylvius) from the caudal part of the third ventricle. Synonym: aditus ad aqueductum cerebri, Bartholin's anus, opening to cerebral aqueduct. (05 Mar 2000) |
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