| Term 
 | Definition 
 
        | severe chest pain resulting when the myocardium is deprived of sufficient oxygen |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | small branch of an artery |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | vessel carrying blood away from the heart |  | 
        |  | 
        
        | Term 
 
        | atrioventricular valve AV |  | Definition 
 
        | two valves that serperate the atrial chambers from the ventricles |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | tiny vessels that connect arterioles and venules |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | volume of blood pumped by one ventricle per minute |  | 
        |  | 
        
        | Term 
 
        | cardiopulmonary resuscuation (CPR) |  | Definition 
 
        | combined external cardiac massage and artifical respiration |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | surgery to relieve severely restricted coronary blood flow; veins are taken from the other parts of the body to bypass the partial blockage |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | delivery of oxygen and removal of waste product from the myocardium |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | blood pressure in arteries during diastole (relaxation) of the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | connects the arota and the pulmonary artery, allowing most blood to bypass the fetus' developing lungs |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | graphic record of the heart's action potientials |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | inflammation of the lining of the liver |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | thin layer of very smooth tissue lining each chamber of the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | shunts blood from the right atrium directly into the left atrium, allowing most blood to bypass the baby's developing lungs |  | 
        |  | 
        
        | Term 
 
        | hepatic portal circulation |  | Definition 
 
        | the route of blood flow through the liver |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | also known as the bicuspid valve; located between the left atrium and ventricle |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | death of cardiac muscle cells resulting from inadequate blood supply as in coronary thrombosis |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | deflection on sn ECG that occurs with depolarization of the atria |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | where the impulse conduction of the heart normally starts; located om the wall of the right atrium near the opeaning of the superior vena cava |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | membrane that surrounds the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | venous blood flow from the right atrium to the lung and returning to the left atrium |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | specalized cells located in the walls of the ventricles; relay nerve impulses from the AV node to the ventricles causing them to contract |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | deflection on an ECG that occurs as a result of deplarization of the ventricles |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | valve located between the two ventricular chambers and the large arteries that carry blood away from the heart; valves found in the veins |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | the heart's pacemaker; where the impulse conduction of the heart normally starts; located om the wall of the right atrium near the opeaning of the superior vena cava |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | blood flow from the left ventricle to all parts of the body and back to the right atrium |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | deflection on an electrocardiogram that occurs with repolarization of the ventricles |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | the valve located between the right atrium and ventricle |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | a large vein carrying oxygen-rich blood from the placenta to the developing fetus |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | vessel carrying blood toward the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | small blood vessels that collect blood from the capillaries and join to form veins |  | 
        |  |