| A | B |
| Aorta | artery that delivers oxygenated blood to the body from the left ventricle |
| Superior Vena Cava | vein that delivers deoxygenated blood from the head, neck, and arms to the right atrium |
| pericardium | outer layer of heart, acts as a protective sac |
| right atrium | upper chamber which recieves deoxygenated blood from the body |
| right ventricle | lower chamber which pumps deoxygenated blood to the lungs |
| pulmonary valve | located between the right ventricle and the pulmonary artery |
| aortic valve | located between the left ventricle and aorta |
| bicuspid valve | located between the left atrium and left ventricle |
| Pulmonary veins | take oxygenated bloood from the lungs to the left atrium |
| pulmonary arteries | takes deoxygenated blood from the right ventricle to the lungs |
| myocardium | muscular middle layer of the heart |
| endocardium | innermost lining of heart |