title: [Heart regulation in situ].
mesh_terms: D000818:Animals; D002415:Cats; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D009068:Movement; D011187:Posture; D011817:Rabbits; D051381:Rats; D013564:Sympathetic Nervous System / Q000502:physiology