| neurocytolysis | Destruction of neurons. Origin: neuro-+ G. Kytos, cell, + lysis, dissolution (05 Mar 2000) |
|---|---|
| neurocytoma | A benign brain tumour consisting of undifferentiated cells of nervous origin, i.e., cells resembling medullary neural epithelium. (12 Dec 1998) |
| neurodegenerative diseases | A varied assortment of central nervous system disorders characterised by gradual and progressive loss of neural tissue. (cecil textbook of medicine, 20th ed, p2050) (12 Dec 1998) |
| neurodegenerative disorder | A type of neurological disease marked by the loss of nerve cells. See: Alzheimer's disease, Parkinson's disease. (22 May 1997) |
| neurodendrite | A long, branching outgrowth or extension from a neuron, that carries electrical signals from synapses to the cell body, unlike an axon that carries electrical signals away from the cell body. Each nerve cell usually has many dendrites. This classical definition, however, lost some weight with the discovery of axo-axonal and dendro-dendritic synapses. (29 Sep 1997) |
| neurodendron | A long, branching outgrowth or extension from a neuron, that carries electrical signals from synapses to the cell body, unlike an axon that carries electrical signals away from the cell body. Each nerve cell usually has many dendrites. This classical definition, however, lost some weight with the discovery of axo-axonal and dendro-dendritic synapses. (29 Sep 1997) |
| neurodermatitis | <dermatology, pathology> An extremely variable eczematous dermatosis presumed to be a cutaneous response to prolonged vigorous scratching, rubbing or pinching to relieve intense pruritus, having the potential to produce polymorphic lesions at the same or different times and varying in severity, course and morphologic expression in different individuals. It is believed by some authorities to be a psychogenic disorder. The term is also used to refer to lichen simplex chronicus (circumscribed neurodermatosis) and sometimes to atopic dermatitis (disseminated neurodermatosis). (04 Mar 1998) |
| neurodermatosis | <dermatology, pathology> An extremely variable eczematous dermatosis presumed to be a cutaneous response to prolonged vigorous scratching, rubbing or pinching to relieve intense pruritus, having the potential to produce polymorphic lesions at the same or different times and varying in severity, course and morphologic expression in different individuals. It is believed by some authorities to be a psychogenic disorder. The term is also used to refer to lichen simplex chronicus (circumscribed neurodermatosis) and sometimes to atopic dermatitis (disseminated neurodermatosis). (04 Mar 1998) |
| neurodynamic | Pertaining to nervous energy. Origin: neuro-+ G. Dynamis, force (05 Mar 2000) |
| neurodynia | Synonym: neuralgia. Origin: neuro-+ G. Odyne, pain (05 Mar 2000) |
| neuroectoderm | <embryology> Ectoderm on the dorsal surface of the early vertebrate embryo that gives rise to the cells (neurons and glia) of the nervous system. Synonym: neural plate. (04 Mar 1998) |
| neuroectodermal | Relating to the neuroectoderm. (05 Mar 2000) |
| neuroectodermal junction | The margin of the embryonic neural plate separating it from the embryonic ectoderm; cells from this region form the neural crest. Synonym: neurosomatic junction. (05 Mar 2000) |
| neuroectodermal tumour, melanotic | A benign, rapidly growing, deeply pigmented tumour of the jaw and occasionally of other sites, consisting of an infiltrating mass of cells arranged in an alveolar pattern, and occurring almost exclusively in infants. Its source of origin is in dispute, the various theories giving rise to its several names. (12 Dec 1998) |
| neuroectodermal tumour, peripheral | A heterogeneous group of malignant neoplasms arising in either supportive structures or neuronal tissue. They occur in adolescents and young adults. This tumour shares a number of characteristics with ewing's sarcoma: it is highly cellular and consists of a monotonous pattern of primitive-appearing round cells. The chest wall is the most common site but the trunk, abdomen, and pelvis are other primary sites. (12 Dec 1998) |