title: Respiratory and cardiac effects on venous return.
mesh_terms: D000818:Animals; D001011:Aorta; D001775:Blood Circulation; D001783:Blood Flow Velocity; D002302:Cardiac Output; D004285:Dogs; D006112:Gravitation; D006439:Hemodynamics / Q000187:drug effects*; D010424:Pentobarbital / Q000494:pharmacology; D005082:Physical Exertion; D011175:Positive-Pressure Respiration; D011187:Posture; D012119:Respiration; D014680:Veins; D014684:Venae Cavae
chemical_list: D010424:Pentobarbital