| A | B |
|---|
| carbon dioxide | A gas made by your cells carried to your lungs |
| plasma | a clear light-yellow liquid that makes up most of your blood |
| platelets | help clot your blood when you have a cut |
| nucleus | the center of a cell |
| kidneys | remove most of the extra water and cell waste in your blood |
| peristalsis | a wavelike squeezing action that moves food through the digestive system |
| cerebrum | the part of your brain where most of your thinking takes place |
| tissue | groups of cells that are alike and work together to do the same job |
| hemoglobin | a substance in your red blood cells that picks up oxygen in the lungs |
| bronchial tubes | the trachea divides into these |
| saliva | a liquid found in the mouth that helps break down food |
| urine | a liquid waste filtered out of the blood by the kidneys |
| skeleton | the framework of connected bones inside the body |
| alveoli | small air sacs in your lungs |
