| vasomotor centre | Diffuse area of the reticular formation in the lateral medulla containing neurons that control vascular tone; consists of separate vasodepressor and vasopressor areas. (05 Mar 2000) |
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| vasomotor epilepsy | Episodes of autonomic dysfunction presumably due to diencephalic irritation. Synonym: diencephalic epilepsy, vasomotor epilepsy, vasovagal epilepsy. (05 Mar 2000) |
| vasomotor fibres | Postganglionic visceral efferent fibres innervating the smooth muscles of vessel walls. (05 Mar 2000) |
| vasomotor imbalance | A lack of balance between sympathetic and parasympathetic nervous systems, especially in relation to the vasomotor disturbances. Synonym: vasomotor imbalance. (05 Mar 2000) |
| vasomotor nerve | <anatomy, nerve> A motor nerve effecting or inhibiting contraction of the blood vessels. (05 Mar 2000) |
| vasomotor neurosis | A group of trophic disorders in which pathological changes occur in blood vessels, often due to autonomic nervous system dysfunction; includes Raynaud's disease, acrocyanosis, erythromelalgia, Buerger's disease, causalgia, and trench foot; archaic concept. Synonym: angioneurosis, vasoneurosis. (05 Mar 2000) |
| vasomotor paralysis | A mild degree of vasoparalysis. Synonym: angioparesis, vasomotor paralysis. Origin: vaso-+ G. Paresis, weakness (05 Mar 2000) |
| vasomotor rhinitis | Congestion of nasal mucosa without infection or allergy. (05 Mar 2000) |
| vasomotor spasm | Spasmodic contraction of the smaller arteries. (05 Mar 2000) |
| vasomotor system | The neural systems which act on vascular smooth muscle to control blood vessel diameter. The major neural control is through the sympathetic nervous system. (12 Dec 1998) |
| rhinitis, vasomotor | A form of rhinitis brought about by changes in vascular tone and permeability. The aetiology is obscure. (12 Dec 1998) |