| nucleus ventralis posterior thalami | The large posterior part of the ventral nucleus of the thalamus receiving the somatic sensory lemnisci (medial lemniscus, spinothalamic tract, trigeminal lemniscus) and the ascending gustatory (taste) lemniscus, and projecting in turn by way of the internal capsule to the cortex of the postcentral gyrus. The nucleus is somatotopically organised and subdivided into a ventral posterolateral nucleus of thalamus representing the leg, a ventral posterior intermediate nucleus of thalamus representing the arm, a ventral posteromedial nucleus of thalamus representing the face, and an arcuate nucleus of thalamus receiving the gustatory lemniscus. Synonym: nucleus ventralis posterior thalami, ventrobasal nucleus. (05 Mar 2000) |
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| nucleus ventralis posterolateralis thalami | Lateral part of the ventrobasal nuclear complex. See: ventral posterior nucleus of thalamus. Synonym: nucleus ventralis posterolateralis thalami. (05 Mar 2000) |
| nucleus ventralis posteromedialis thalami | ventral posteromedial nucleus of thalamus |
| nucleus ventralis thalami | A large, complex cell mass the external border of which forms the ventral and much of the lateral boundary, as well as the rostral border, of the thalamus; it can be subdivided into an anterior, intermediate, and posterior part. Synonym: nucleus ventralis thalami. (05 Mar 2000) |
| nucleus ventromedialis hypothalami | <anatomy> A circumscript ovoid group of small neurons in the medial zone of the tuberal region of the hypothalamus. Bilateral destruction of this nucleus in the rat leads to severe obesity. It receives numerous fibres from the amygdala via the terminal stria; its efferent connections are obscure. Synonym: nucleus ventromedialis hypothalami. (05 Mar 2000) |
| nucleus vestibularis | One of a group of four main nuclei that includes: the lateral vestibular nucleus (Deiters' nucleus), medial vestibular nucleus (Schwalbe's nucleus), superior vestibular nucleus (Bechterew's nucleus), and inferior vestibular nucleus, located in the lateral region of the hindbrain beneath the floor of the rhomboid fossa. They receive primary fibres of the vestibular nerve, are reciprocally connected with the flocculonodular lobe of the cerebellum, and project by way of the medial longitudinal fasciculus to the abducens, trochlear, and oculomotor nuclei and to the ventral horn of the spinal cord. The lateral vestibular nucleus projects to the ipsilateral ventral horn of the spinal cord by the vestibulospinal tract. Synonym: nucleus vestibularis. (05 Mar 2000) |
| nuclide | <physics> A species of atom characterised by the constitution of its nucleus, which is specified by the number of protons (Z), number of neutrons (N) and energy content or, alternatively, by the atomic number (Z), mass number (A = N + Z) and atomic mass, to be regarded as a distinct nuclide, an atom must be capable of existing for a measurable time, thus, nuclear isomers are separate nuclides, whereas promptly decaying excited nuclear states and unstable intermediates in nuclear reactions are not. (16 Dec 1997) |
| nuclear energy |
Heat energy produced by the process of nuclear fission within a nuclear reactor. The coolant that removes heat from the reactor core is normally used to boil water. The resultant steam drives turbines that rotate electrical generators.
출처: www.pbs.org/wgbh/pages/frontline/shows/reaction/et...
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| nuclear magnetic resonance imaging |
NMRI. A procedure in which a magnet linked to a computer is used to create detailed pictures of areas inside the body.
출처: www.seniormag.com/conditions/cancer/cancerglossary...
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| nucleophile |
Literally, something that loves nuclei. All nucleophiles are Lewis bases.
출처: xenon.che.ilstu.edu/genchemhelphomepage/glossary/n...
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| nuclide |
An atom with a particular combination of protons and neutrons, such as the 14 C nuclide.
출처: xenon.che.ilstu.edu/genchemhelphomepage/glossary/n...
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| nucleic acid |
A molecule of very high molecular weight used to store and process the genetic information in cells.
출처: xenon.che.ilstu.edu/genchemhelphomepage/glossary/n...
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