| A | B |
|---|
| valves | flaps of tissue that control the movement of blood in veins |
| brain | type of cell which requires the most oxygen |
| septum | separates the heart into a right and left side |
| athereosclerosis | the most common cause of heart attacks in the U.S. |
| pacemaker | controls the heart's rhthym |
| heart | pumps blood through a network of blood vessels |
| plasma | liquid portion of blood |
| oxygen-rich | blood that is carrying oxygen |
| fibrin | will stop bleeding by trapping blood cells and plasma |
| type O | the only human blood group who lacks protein on red blood cells |
| bone marrow | where red blood cells are produced |
| right ventricle | pumps blood to the LUNGS |
| transfusion | the process of transferring blood from one person to another. |
| left ventricle | pumps blood to ALL parts of the body |
| contractions | controlled by the heart's pacemaker |
| circulatory | system which transports materials to all parts of the body |
| white blood cells | an important part of the body's immune system |
| CO2 | Substance carried by oxygen -poor blood |
| arteries | blood vessels that carry blood AWAY from the heart |
| aorta | the largest blood vessel in the body |
| vein | blood vessel that carries blood back to the heart |
| hemoglobin | the iron-containing protein found in red blood cells |
| capillary | tiny blood vessel that will allow food and oxygen to pass through its walls |
| spleen | organ that breaks down damaged red blood cells |
| red blood cells | do not have a nucleus |
| white blood cells | defend the body |
| platelets | release enzymes to form clots |
| hypertension | high blood pressure |
