| A | B |
|---|
| veins | bring blood back to the heart |
| arteries | take blood away from the heart |
| capillaries | exchange of oxygen and food occurs here |
| right atrium | deoxygenated blood enters here |
| right ventricle | deoxygenated blood is pumped to the lungs from here |
| left atrium | blood returns to this chamber from the lungs |
| left ventricle | thick walled chamber that pumps to the whole body |
| valves | prevent backflow of blood |
| pulmonary arteries | brings deoxygenated blood to the lungs |
| pulmonary veins | returns oxygenated blood from the lungs to the heart |
| vena cava | collects deoxygenated blood from the body and returns it to the heart |
| aorta | largest artery, delivers oxygenated blood to all paprts of the body |
| white blood cells | fight pathogens |
| red blood cells | contain hemoglobin |
| platelets | aid in clotting |
| pacemaker | controls the beat of the heart |
| AB | universal receptor |
| O | universal donor |
| cholesterol | can clog arteries and cause heart attack |
| hypertension | high blood pressure |
| diastolic | pressure in the arteries when the ventricles relax |
| systolic | pressure inside the arteries when the ventricles contract |
| pulmonary circulation | circulation between the heart and lungs |
| systemic circulation | circulation between the heart and the body |
