| A | B |
|---|
| skeleton | the framework of bones that supports the body and protects the inner organs of a human being |
| bone | one of many pieces that make up the skeleton of most animals with backbones |
| joint | a place where two or more bones come together, like at the elbows and knees |
| skull | the bony framework of the head that encloses and protects the brain in a human being |
| calcium | a chemical that is found in substances such as milk, bones and shells; you need it to make your bones strong |
| saliva | the watery fluid produced in the mouth that helps in chewing and swallowing food |
| esophagus | the tube that connects the throat with the stomach |
| stomach | a large muscular pouch into which food passes when it leaves the mouth and esophagus |
| intestine | the part of the digestive system in which food is broken down completely and water and nutrients are absorbed into the bloodstream |
| nutrient | something that provides what is needed for growth and development |
| digestive system | the system by which food is broken down and easily absorbed and used by the body |
