| ventral tegmental area | A region in the mesencephalon which is dorsomedial to the substantia nigra and ventral to the red nucleus. The mesocortical and mesolimbic dopaminergic systems originate here, including an important projection to the nucleus accumbens. Overactivity of the cells in this area has been suspected to contribute to the positive symptoms of schizophrenia. (12 Dec 1998) |
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| ventral tegmental decussation | See: tegmental decussations. (05 Mar 2000) |
| ventral thalamic peduncle | The massive system of fibre bundles emerging through the ventral, lateral, and anterior borders of the thalamus to join the internal capsule and parts of the corona radiata; it contains the fibres reciprocally connecting the ventral thalamic nuclei with the precentral and postcentral gyri of the cerebral cortex. Synonym: pedunculus thalami ventralis. (05 Mar 2000) |
| ventral tier thalamic nuclei | Collective term for nuclei in the ventral part of the lateral nuclear group, e.g., ventral anterior, lateral, posterolateral, and posteromedial nuclei and the medial and lateral geniculate bodies. The basoventral nuclear complex constitutes the caudal part of the ventral tier thalamic nuclei. (05 Mar 2000) |
| ventral white column | A narrow band of white substance bordering on the anterior median fissure of the spinal cord in front of the anterior gray commissure, and consisting of nerve fibres crossing over from one half of the spinal cord to the other. Synonym: commissura alba, anterior white commissure, commissura ventralis alba, ventral white column. (05 Mar 2000) |
| ventralis | Synonym: ventral. Origin: L. (05 Mar 2000) |
| ventricle | <anatomy> The paired (right and left) more muscular chambers of the heart that pump blood into the pulmonary (right ventricle) and systemic (left ventricle) circulation. (27 Sep 1997) |
| ventricle of cerebral hemisphere | A cavity shaped somewhat like a horseshoe in conformity with the general shape of the hemisphere; each lateral ventricle communicates with the third ventricle through the interventricular foramen of Monro, and expands from there forward into the frontal lobe as the anterior horn as well as caudally over the thalamus as the central part or cella media which, behind the thalamus, curves ventrally and laterally, then forward into the temporal lobe as the inferior horn; from the apex of the curve a variably sized posterior horn extends back into the white matter of the occipital lobe. The large choroid plexus of the lateral ventricle invades the cella media and the inferior horn (but not the anterior and posterior horn) from the medial side. Synonym: ventriculus lateralis, ventricle of cerebral hemisphere. (05 Mar 2000) |
| ventricle of diencephalon | A narrow, vertically oriented, irregularly quadrilateral cavity in the midplane, extending from the lamina terminalis to the rostral opening of the mesencephalic aqueduct. This ventricle communicates at its rostrodorsal corner with each of the two lateral ventricles through the left and right interventricular foramen of Monro. Its narrow roof is formed by the tela choroidea which is attached on either side to the tenia thalami; its lateral wall by the medial surface of the thalamus and, below the hypothalamic sulcus, by the hypothalamus which also forms its floor. In lateral profile, the third ventricle exhibits a number of recesses: in its floor, from before backward, 1) the preoptic recess in the acute angle between the base of the lamina terminalis and the dorsum of the optic chiasm, 2) the infundibular recess extending ventrally into the infundibulum but (in humans) not into the hypophysial stalk, and 3) the mamillary or inframamillary recess caused by the protrusion of the mamillary bodies into the ventricle. From its dorsocaudal corner, the pineal recess extends caudally into the pineal stalk. Synonym: ventriculus tertius, diacele, ventricle of diencephalon. (05 Mar 2000) |
| ventricle of rhombencephalon | A cavity of irregular tentlike shape extending from the obex rostralward to its communication with the sylvian aqueduct, enclosed between the cerebellum dorsally and the rhombencephalic tegmentum ventrally, having a rhomboid-shaped floor (rhomboid fossa) and a tentlike roof which in its caudal part is formed by the tela choroidea and the posterior medullary velum, in its middle part by the white matter of the cerebellum, and in its narrowing rostral part (recessus superior) by the anterior medullary velum. The fourth ventricle reaches its greatest width at the pontomedullary transition, where it expands laterally behind the cerebellar peduncles into the spoutlike lateral recess, and its greatest height at the fastigial recess, which reaches up into the cerebellar white matter. Direct communication of the brain's ventricle system and the subarachnoid space is established at the level of the fourth ventricle by a median opening in the tela choroidea, the medial aperture of Magendie's foramen, which opens into the cerebellomedullary cistern, and on both sides by the lateral aperture or foramen of Luschka, which connects the lateral recess with the interpeduncular cistern. Synonym: ventriculus quartus, ventricle of rhombencephalon. (05 Mar 2000) |
| ventricle of Sylvius | A slitlike, fluid-filled space of variable width between the left and right transparent septum, which occurs in less than 10% of human brains and may communicate with the third ventricle. Synonym: cavum septi pellucidi, Duncan's ventricle, fifth ventricle, pseudocele, pseudoventricle, sylvian ventricle, ventricle of Sylvius, ventriculus quintus, Vieussens' ventricle, Wenzel's ventricle. (05 Mar 2000) |
| ventricles | Chambers of an organ. For example, the four connected cavities (hollow spaces) in the central brain or the four chambers of the heart. (12 Dec 1998) |
| ventricles of heart | One of the two lower chambers of the heart. Synonym: ventriculus cordis. (05 Mar 2000) |
| ventricose | Bulging or swollen on one side or unequally. (05 Mar 2000) |
| ventricous | Swelling out on one side or unequally; bellied; ventricular; as, a ventricose corolla. Ventricose shell. <zoology> A spiral shell having the body whorls rounded or swollen in the middle. A bivalve shell in which the valves are strongly convex. Origin: NL. Ventricosus, fr. L. Venter belly. Source: Websters Dictionary (01 Mar 1998) |
Synonyms : Angiographies, First-Pass Radionuclide, Angiography, First-Pass Radionuclide, First Pass Radionuclide Angiography, First Pass Ventriculography, First-Pass Radionuclide Angiographies, First-Pass Radionuclide Ventriculographies, First-Pass Ventriculographies
Synonyms : Ventriculo-peritoneal Shunt, Shunt, Ventriculo-peritoneal, Shunt, Ventriculoperitoneal, Shunts, Ventriculo-peritoneal, Shunts, Ventriculoperitoneal, Ventriculo peritoneal Shunt, Ventriculo-peritoneal Shunts, Ventriculoperitoneal Shunts
Synonyms : Ventriculocisternostomies, Ventriculostomies
Synonyms : Nucleus, Ventromedial Hypothalamic
Synonyms :
| ventricle |
The ventricular system is a fluid conducting system within the brain. It is filled with cerebrospinal fluid (CSF) that is largely composed of water. The ventricular system serves to bathe and cushion the brain and spinal cord within their bony confines. The ventricular system consists of two large lateral ventricles in either cerebral hemisphere that extend into the temporal lobes (temporal horns) and occipital lobes (occipital horns). ...
출처: en.wikipedia.org/wiki/Ventricle_(brain)
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| venter |
Refers to the underside of the body.
출처: www.geocities.com/Heartland/Bluffs/8071/reptile/te...
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| ventral |
The underside of the body.
출처: www.geocities.com/Heartland/Bluffs/8071/reptile/te...
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| ventricle |
A fluid-filled cavity in the heart or brain.
출처: www.stjude.org/glossary
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| ventilation |
the process through which oxygen and carbon dioxide are exchanged between the lungs and the air; also refers to the use of a machine to carry out this process in someone who cannot breathe on his or her own
출처: www.american-depot.com/services/resources_gl_v.asp
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| vent | a performer who projects the voice into a wooden dummy |
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| vent | a wooden dummy into which a ventriloquist projects the voice |
| vent | the art of projecting your voice so that it seems to come from another source (as from a ventriloquist's dummy) |
| vent | any venturesome undertaking especially one with an uncertain outcome |
| vent | a commercial undertaking that risks a loss but promises a profit |
| vent | an investment that is very risky but could yield great profits |
| vent | put forward, of a guess |
| vent | express in spite of possible refutation |
| vent | proceed somewhere despite the risk of possible dangers |
| vent | put at risk |
| vent | wealth available for investment in new or speculative enterprises |
| vent | a speculator who makes money available for innovative projects (especially in high technology) |