| 释义 |
Vasomotor center
| the chief dominating or general center which supplies all the unstriped muscles of the arterial system with motor nerves, situated in a part of the medulla oblongata; a center of reflex action by the working of which afferent impulses are changed into efferent, - vasomotor impulses leading either to dilation or constriction of the blood vessels. |
See also: Vasomotor vasomotor center
vasomotor center[¦vāz·ə′mōd·ər ‚sen·tər] (physiology) A large, diffuse area in the reticular formation of the lower brainstem; stimulation of different portions of this center causes either a rise in blood pressure and tachycardia (pressor area) or a fall in blood pressure and bradycardia (depressor area). vasomotor center
va·so·mo·tor cen·terdiffuse area of the reticular formation in the lateral medulla containing neurons that control vascular tone; consists of separate vasodepressor and vasopressor areas.vasomotor center Neuroanatomy A cluster of nerve cell bodies in the medulla oblongata that controls the diameter of blood vessels and regulates blood pressureThesaurusSeecenter |