| A | B |
|---|
| arteries | vessels that carry blood away from the heart |
| veins | vessels that carry blood to the heart |
| capillaries | connect arteries and veins |
| right atrium | heart chamber that receives deoxygenated blood |
| left atrium | heart chamber that receives oxygenated blood |
| tricuspid valve | valve between right atrium & ventricle |
| bicuspid valve | valve between left atrium & ventricle |
| pulmonary SL valve | valve between right ventricle and pulmonary arteries |
| aortic SL valve | valve between left ventricle and aorta |
| pericardial | cavity where heart is found |
| auricle | outer portion of atrium |
| myocardium | muscular layer of heart wall |
| coronary arteries | supply blood to the heart muscle itself |
| myocardial infarction | another name for a heart attack |
| EKG | recording of the electrical activity of the heart |
| systole | contraction phase of the heart |
| diastole | relaxation phase of the heart |
| lub | sound made by closing of bicuspid and tricuspid valves |
| dub | sound made by closing of pulmonary and aortic SL valves |
| intercalated discs | connect all cardiac muscle cells |
| pacemaker | cells found in SA node |
