| nucleus pyramidalis | An obsolete term for nucleus olivaris accessorius medialis. (05 Mar 2000) |
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| nucleus reticularis thalami | A sheet of fairly large neurons covering the lateral, ventral, and rostral surfaces of the thalamus; its reticular appearance is caused by the numerous fascicles of the thalamic peduncles which traverse the nucleus The nucleus receives numerous fibres from the cerebral cortex but it has no cortical projection. Synonym: nucleus reticularis thalami. (05 Mar 2000) |
| nucleus ruber | A distinctive oval nucleus (pink in fresh specimens because of an iron-containing pigment in many of the cells) centrally placed in the upper mesencephalic reticular formation. It receives fibres from the deep cerebellar nuclei and cerebral cortex and projects fibres to the cerebellum, brainstem, spinal cord, and probably to the thalamus. The nucleus is divided into two regions: pars magnocellularis and pars parvocellularis. (12 Dec 1998) |
| nucleus salivatorius inferior | A group of preganglionic parasympathetic motor neurons located in the reticular formation of the medulla oblongata dorsal to the nucleus ambiguus; its axons leave the brain with the glossopharyngeal nerve and govern secretion from the parotid gland by the intermediary of the ganglion oticum; cells of the inferior and superior nucleus are scattered and overlapping in lateral regions of the reticular formation. Synonym: nucleus salivatorius inferior, inferior salivary nucleus. (05 Mar 2000) |
| nucleus salivatorius superior | A group of preganglionic parasympathetic motor neurons situated rostral and lateral to the inferior salivatory nucleus; it governs secretion of the lacrimal, sublingual, and submaxillary glands by way of the facial nerve and the sphenopalatine and submandibular ganglia. Synonym: nucleus salivatorius superior, superior salivary nucleus. (05 Mar 2000) |
| nucleus sensorius principalis nervi trigemini | <anatomy, nerve> The term commonly used to designate the nucleus pontis nervi trigeminalis; located in pons lateral to the motor trigeminal nucleus; receives primary sensory (touch and pressure) input via the trigeminal nerve, projects to ventral posteromedial nucleus of thalamus. Synonym: nucleus sensorius principalis nervi trigemini, nucleus sensorius superior nervi trigemini, principal sensory nucleus of the trigeminus. (05 Mar 2000) |
| nucleus sensorius superior nervi trigemini | <anatomy, nerve> The term commonly used to designate the nucleus pontis nervi trigeminalis; located in pons lateral to the motor trigeminal nucleus; receives primary sensory (touch and pressure) input via the trigeminal nerve, projects to ventral posteromedial nucleus of thalamus. Synonym: nucleus sensorius principalis nervi trigemini, nucleus sensorius superior nervi trigemini, principal sensory nucleus of the trigeminus. (05 Mar 2000) |
| nucleus spinalis nervi accessorii | spinal nucleus of accessory nerve |
| nucleus subthalamicus | A circumscript nucleus, shaped like a biconvex lens, located in the ventral part of the subthalamus on the dorsal surface of the peduncular part of the internal capsule immediately rostral to the substantia nigra. The nucleus receives a massive topographic projection from the lateral segment of the globus pallidus, and a somatopically organised projection from the ipsilateral motor cortex; a smaller bundle of afferents from the centromedian nucleus of the thalamus terminate in the rostral part of the nucleus The subthalamic nucleus projects to both pallidal segments, to the pars reticulata of the substantia nigra, and in a small way to the ipsilateral pedunculopontine nucleus. Synonym: nucleus subthalamicus, corpus luysi, Luys' body, nucleus of Luys. (05 Mar 2000) |
| nucleus suprachiasmatica | Small nucleus located dorsal to the optic chiasm; receives input from retina, influences hypothalamic neuroendocrine function; closely associated with regulation of circadian rhythmicity. (05 Mar 2000) |
| nucleus supraopticus hypothalami | A large-celled neurosecretory nucleus in the hypothalamus, located over the lateral border of the optic tract, from which the supraopticohypophysial tract arises; its neurons produce and transport vasopressin released into the general circulation from the axon terminals in the supraopticohypophysial tract. Synonym: nucleus supraopticus hypothalami, supraoptic nucleus. (05 Mar 2000) |
| nucleus tecti | The most medial of the cerebellar nuclei, lying medial to the interpositus nucleus, near the midline, in the white matter underneath the vermis of the cerebellar cortex. It receives the axons of Purkinje cells from all parts of the vermis. Its major projection is to the vestibular nuclei and medullary reticular formation. Synonym: nucleus fastigii, fastigatum, nucleus tecti, roof nucleus, tectal nucleus. (05 Mar 2000) |
| nucleus thoracicus | A column of large neurons located in the base of the posterior gray column of the spinal cord, extending from the first thoracic through the second lumbar segment; it gives rise to the dorsal spinocerebellar tract of the same side. Synonym: nucleus thoracicus, Clarke's column, Clarke's nucleus, dorsal nucleus, nucleus dorsalis, Stilling's column, Stilling's nucleus. (05 Mar 2000) |
| nucleus tractus mesencephali nervi trigemini | <anatomy, nerve> A long, narrow plate of unipolar neurons extending throughout the length of the midbrain, in and along the lateral angle of the central gray substance. The nucleus is the single known instance of primary sensory neurons enclosed in the central nervous system instead of in a peripheral sensory ganglion. Its peripheral axonal processes pass with the trigeminal nerve, give collaterals to the trigeminal motor nucleus, and terminate in the muscles of mastication. Synonym: nucleus tractus mesencephali nervi trigemini. (05 Mar 2000) |
| nucleus tractus solitarii | A slender cell column extending sagittally through the dorsal part of the medulla oblongata, beneath the floor of the rhomboid fossa, immediately lateral to the limiting sulcus. It is the visceral sensory (visceral afferent) nucleus of the brainstem, receiving the afferent fibres of the vagus, glossopharyngeal, and facial nerves by way of the solitary tract. The caudal two-thirds of the nucleus processes impulses originating in the pharynx, larynx, intestinal and respiratory tracts, and heart and large blood vessels; its rostral one-third receives impulses from the taste buds and is known as the rhombencephalic gustatory nucleus. Synonym: nucleus tractus solitarii. (05 Mar 2000) |
Synonyms : Clinical Methodology Research, Nursing, Nursing Methodological Issues Research
Synonyms : Process, Nursing, Nursing Processes, Processes, Nursing
Synonyms : Records, Nursing, Nursing Record, Record, Nursing
Synonyms :
Synonyms : Service, Hospital Nursing, Hospital Nursing Services, Nursing Services, Hospital, Services, Hospital Nursing
| nucleoside analogue |
A synthetic molecule that resembles a naturally occurring nucleoside, but that lacks the bond site needed to link it to an adjacent nucleotide. See nucleoside.
출처: www.fao.org/docrep/003/X3910E/X3910E17.htm
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| nucleolar organizer |
(NO); nucleolar organizer region (NOR) A chromosomal segment containing genes that encode ribosomal RNA; located at the secondary constriction of some chromosomes.
출처: www.fao.org/docrep/003/X3910E/X3910E17.htm
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| nuclear transfer |
A technology by which animals are created by cloning a single diploid somatic cell. It involves taking a single diploid cell from a culture of cells, and inserting it into an enucleated ovum, ie, an ovum from which the haploid nucleus has been removed. The resultant diploid ovum develops into an embryo that is placed in a recipient female, which gives birth to the cloned animal in the normal manner. ...
출처: www.fao.org/docrep/003/X3910E/X3910E17.htm
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| nuclein |
The term used by Friedrich Miescher to describe the nuclear material he discovered in 1869, which today is known as DNA.
출처: www.fao.org/docrep/003/X3910E/X3910E17.htm
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| nucleolus |
(L. nucleolus, a small nucleus) An RNA-rich intranuclear organelle in the nucleus of eukaryotic cells, produced by a nucleolar organizer. It represents the storage place for ribosomes and ribosome precursors. The nucleolus consists primarily of ribosomal precursor RNA, ribosomal RNA, their associated proteins, and some, perhaps all, of the enzymatic equipment (RNA polymerase, RNA methylase, RNA cleavage enzymes) required for synthesis, conversion and assembly of ribosomes. ...
출처: www.fao.org/docrep/003/X3910E/X3910E17.htm
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| NU | Russian dancer who was often the partner of Dame Margot Fonteyn and who defected to the United States in 1961 (born in 1938) |
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| NU | a city in southeastern Germany |
| NU | a woman who is the custodian of children |
| NU | one skilled in caring for the sick (usually under the supervision of a physician) |
| NU | try to cure by special care of treatment, of an illness or injury |
| NU | give suck to |
| NU | maintain |
| NU | treat carefully |
| NU | serve as a nurse |
| NU | a registered nurse who has received special training and can perform many of the duties of a physician |
| NU | a registered nurse who has received special training and can perform many of the duties of a physician |
| NU | small bottom-dwelling shark of warm shallow waters on both coasts of North and South America and from southeast Asia to Australia |