| neuroanatomy | <anatomy> Study of the anatomy of the nervous system as a specialty or discipline. (12 Dec 1998) |
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| neuroarthropathy | <rheumatology> A joint disorder caused by loss of joint sensation. See: Charcot's joint. Origin: neuro-+ G. Arthron, joint, + pathos, suffering, disease (05 Mar 2000) |
| neuroaugmentation | <physiology> Use of electrical stimulation to supplement activity of the nervous system. (05 Mar 2000) |
| neuroaugmentive | Related to neuroaugmentation. (05 Mar 2000) |
| neuroaxonal dystrophies | Encephalopathies characterised by swelling in distal portions of axons (speroids) often with axonal degeneration. Neuroaxonal dystrophy is seen in various genetic diseases, vitamin deficiencies, and aging. Infantile neuroaxonal dystrophy (seitelberger's disease) is an autosomal recessive trait characterised by arrested psychomotor development at 6 months to 2 years followed by ataxia, brainstem signs, optic atrophy, and quadriparesis. Hallervorden-spatz syndrome, which usually first appears at 7 to 12 years of age, may be genetically related to the infantile syndrome. (12 Dec 1998) |
| neuroaxonal dystrophy | A rare disorder that begins in the second year of life and is relentlessly progressive; clinically characterised initially by walking difficulties, weakness, and areflexia, later followed by corticospinal and pseudobulbar findings, blindness, loss of pain appreciation, and mental deterioration; pathologically, eosinophilic spheroids of swollen axoplasm are found in various central nuclei; autosomal recessive inheritance. (05 Mar 2000) |
| neurobiology | The biology of the nervous system. (05 Mar 2000) |
| neurobiotactic movement | The streaming of nerve cells toward the area from which they receive the most stimuli. (05 Mar 2000) |
| neurobiotaxis | The theory that nerve cell bodies may move toward, or their axons may grow toward, the area from which they receive the most stimuli. Origin: G. Neuron, nerve + bios, life + taxis, arrangement (05 Mar 2000) |
| neuroblast | <embryology> Cells arising by division of precursor cells in neural ectoderm (neurectoderm) that subsequently differentiate to become neurons. (16 Dec 1997) |
| neuroblastoma | <oncology, tumour> Malignant tumour derived from primitive ganglion cells. Mainly a tumour of childhood. Commonest sites are adrenal medulla and retroperitoneal tissue. The cells may partially differentiate into cells having the appearance of immature neurons. The tumour shows a consistent deletion of the 1p36 region which is considered the site of the neuroblastoma I gene. Loss of the 1p36 region also correlates with amplification for the N-myc oncogene, particularly in later stages of the disease. Amplification of N-myc with DNA triploidy is associated with poor survival. Hereditary forms of the condition are rare and in such patients there is no risk for other cancers, which suggests a specificity of the antioncogene for neural tissues. (16 Dec 1997) |
| neuroborreliosis | Infla mmation or disease caused by infection of the central nervous system by a member of the genus Borrelia. It is frequently a late stage in the disease process, particularly in immunosuppressed individuals, such as those suffering from AIDS. (05 Mar 2000) |
| neurocaele | <anatomy> The central canal and ventricles of the spinal cord and brain; the myelencephalic cavity. Origin: Neuro- + Ge. A hollow. Source: Websters Dictionary (01 Mar 1998) |
| neurocalcin | <protein> Calcium binding protein (23 kD) related to recoverin. Abundant in CNS. (18 Nov 1997) |
| neurocardiac | 1. Relating to the nerve supply of the heart. 2. Relating to a cardiac neurosis. Origin: neuro-+ G. Kardia, heart (05 Mar 2000) |