| A | B |
|---|
| cell | smallest living part of the body |
| tissue | a group of cells that look alike |
| skeleton | all the bones in the body |
| organ | a group of different tissues that work together to do the same job |
| oxygen | colorless gas cells take in to stay alive |
| carbon dioxide | colorless waste gas given off by cells |
| blood vessels | little tubes that blood travels through to go to your cells |
| digest | when food changes to a form the cells in your body can use |
| large intestine | the organ of the body where wastes are passed out of the body |
| small intestine | the organ of the body where nutrients in the food enter the blood |
| joint | a place where bones fit together |
| saliva | a juice in your mouth that helps soften food |
| heart | the organ that pumps blood to your cells |
| lungs | the 2 spongy organs that have air in them |
| senses | seeing, hearing, touching, tasting, smelling |
| nerves | the senses send messages through them to the brain |
