| A | B |
|---|
| capillaries | where gas and nutrients are exchanged, one cell thick |
| CO2 carbon dioxide | waste gas carried away from cells by the blood |
| O2 oxygen | transported TO tissue by the blood |
| aortic and mitral valves | oxygenated blood passes through |
| aorta | large arterial trunk, carries blood AWAY FROM the heart to the body |
| inferior vena cava | largest vein in the body, returns bolood to the right atrium from the lower parts of the body |
| left ventricle | thickest chamber of the heart |
| Atrium | top chambers of the heart |
| Ventricle | bottom chambers of the heart |
| left side | clean blood FROM the lungs To the body |
| right side | diRty blood from the body to the lungs |
| tpam | valves of the heart, tricuspid, pulmonary, aortic, mitral |
| heart points to | the left |
