Title :
The sympathetic nervous system´s role in regulating blood pressure variability
Author :
Malpas, Simon C. ; Leonard, Bridget L. ; Guild, Sarah-Jane ; Ringwood, John V. ; Navakatikyan, Michael ; Austin, Paul C. ; Head, Geoffrey A. ; Burgess, Don E.
Author_Institution :
Circulatory Control Lab., Auckland Univ., New Zealand
Abstract :
This article focuses on how sympathetic nerve activity (SNA) contributes to the variability seen in blood pressure. Specifically, it examines the following questions: why do oscillations occur at certain frequencies, why do only certain frequencies of oscillations in SNA induce oscillations in the vasculature, and what may be the functional purpose of these oscillations.
Keywords :
blood vessels; haemodynamics; neurophysiology; blood pressure variability; blood vessels; cardiac-related oscillations; hypertension pathogenesis; respiratory-related oscillations; sympathetic nerve activity; vascular tone control; vasculature oscillations; Blood flow; Blood pressure; Blood pressure variability; Blood vessels; Control systems; Frequency; Hypertension; Medical control systems; Pressure control; Rhythm; Analysis of Variance; Animals; Biomedical Engineering; Blood Pressure; Heart; Humans; Hypertension; Models, Cardiovascular; Models, Neurological; Oscillometry; Respiratory Physiology; Sympathetic Nervous System;
Journal_Title :
Engineering in Medicine and Biology Magazine, IEEE
