change in renal sympathetic nerve activity to change in intracerebroventricular sodium concentration ratio
change in RSNA to change in MAP ratio
range of RSNA changes during variation of MAP +
stimulated renal sympathetic nerve activity to basal renal sympathetic nerve activity ratio
A calculated measurement in which the recordable electrical energy of a renal sympathetic nerve assessed after the application of an agent or activity designed to excite or increase the activity of is divided by the activity of such a nerve assessed without outside influences and presented as a ratio, fraction, quotient or percentage. A renal sympathetic nerve is a nerve (a cordlike structure that conveys impulses between the central nervous system and one or more parts of the body, and that consists of an outer connective tissue sheath surrounding a bundle of conductive fibers) of the autonomic nervous system that regulates involuntary and automatic reactions, especially to stress, associated with and controlling activity of the kidneys.