| A | B |
|---|
| artery | vessels that carries blood away from the heart |
| vein | carries blood back to the heart |
| capillaries | tiny vessels one cell thick |
| septum | divides heart into two halves |
| atrium | upper chamber the receives blood from veins |
| ventricle | lower heart chamber pumps blood out of the heart |
| tricuspid valve | valve between rt atrium and rt ventricle |
| mitral valve | valve between left atrium and left ventricle |
| aortic valve | valve between left venticle and arteries |
| pericardium | membrane around the heart |
| pulmonary artery | Only arterry low in oxygen and rich in carbon dioxide |
| pulmonary vein | only vein rich in oxygen and low in carbon dioxide |
| endothelium | cell that lines blood vessels |
| symphyngomanometer | measures blood pressure |
| electrocardiogram | measures electrical activity of the heart |
