title: [New theory of holistic integrative physiology and medicine. II: New insight of the control and regulation of circulation].
abstract: OBJECTIVE
  The interpretation of control and regulation of circulatory parameters in traditional physiology has some limitations. Human being is an organic, circulatory control and regulation should involve all the systems.
  
  
  METHODS
  Based upon the theory of holistic integrative physiology and medicine, we approach to explain the circulatory control and regulation from its purpose.
  
  
  RESULTS
  The main purpose of circulation is to maintain a stable metabolism of cells, i.e. transport oxygen (from lung) and nutrients (from gastrointestinal tract) to cells, and return carbon dioxide and metabolic products back for elimination. Based on this goal, all respiration and gastrointestinal digestion, absorption, urinary excretion, etc. are integrative together for regulation to maintain the supply-demand balance at any metabolic status of resting, exercise and sleep. So that, we can explain many existing problems and questions, for example: why and how the foramen ovale closed after birth; mechanism of Cheyne-Stokes respiration; blood flow redistribution during exercise; variabilities of systolic blood pressure, heart rate and autonomic tone.
  
  
  CONCLUSIONS
  The circulatory control and regulation is the integration of all systems of the body.
authors.forename: Xing-guo
authors.initials: XG
authors.lastname: Sun
mesh_terms: D001775:Blood Circulation / Q000502:physiology*; D006694:Holistic Health; D006801:Humans; D055048:Integrative Medicine