title: Influence of atrial contraction and relaxation on closure of mitral valve. Observations on effects of autonomic nerve activity.
mesh_terms: D001341:Autonomic Nervous System / Q000502:physiology*; D017776:Autonomic Pathways; D006321:Heart / Q000502:physiology*; D006325:Heart Atria; D006801:Humans; D008943:Mitral Valve / Q000502:physiology*
keywords: AUTONOMIC NERVOUS SYSTEM/physiology; HEART/physiology; MITRAL VALVE/physiology