Cardiovascular Revised.

Cardiovascular Rovascular system -ANSWER. Body system that includes the heart and the blood vessels. atria -ANSWER. The chambers of the heart that receive blood. Upper receiving chambers -separated by interatrial septum ventricles -ANSWER. Lower discharging chambers. that function as the major blood pumps -separated by interatrial septum AV valves -ANSWER. Open during heart relaxation and closed during ventricular contraction tricuspid and bicuspid SL valves -ANSWER. Semilunar, aortic Only in the vein, prevent blood back flow Between ventricles and arteries Pulmonic, aortic coronary arteries -ANSWER. blood vessels that carry oxygen-rich blood from the aorta to the heart muscle blood flow through the heart -ANSWER. inferior/Superior Vena Cava - Right Atrium - tricuspid valve - Right Ventricle - Pulmononary semilunar valve - Pulmonary Trunk - Pulmonary arteries - Lungs - Pulmonary Veins - L Atrium - L Ventricle - Aorta - systemic circulation cardiac muscle fibers -ANSWER. have intercalated disks that allow network of muscles to contract as a unit striated, involuntarily control heartbeat MI -ANSWER. myocardial infarction crushing stabbing chest pain unrelieved by nitro Heart attack angina pectoris -ANSWER. chest pain that results when the heart does not get enough oxygen two circuits -ANSWER. -pulmonary circuit -systemic circuit pulmonary circuit -ANSWER. the vessels that carry blood from the heart to the lungs