| A | B |
|---|
| calorie | A unit used to indicate the amount of energy in food |
| nerve tissue | tissue found in the brain. |
| homeostasis | An organism's internal environment is kept stable |
| calcium | Mineral stored in the bones |
| dislocation | An injury in which a bone comes out of its joint |
| small intestine | The organ where most chemical digestion takes place. |
| involuntary muscles | Muscles that we do not control |
| voluntary muscles | Muscles that we do control |
| cardiac muscle | Muscle found only in the heart |
| vertebrae | Bones that form the backbone |
| circulatory system | Transports materials through the body |
| skeletal system | Which system supports and protects the body and makes blood cells? |
| tissue | Made up of a group of cells |
| digestive system | Which sytem breaks down food for absorption into the blood |
| cell | Basic unit of structure and function in the human body |
| nucleus | Directs the activities of a cell |
| saliva | The substance in the mouth that contains an enzyme that begins chemical digestion |
| water | Nutrient needed for all body processes to take place |
| proteins | Nutrient made up of amino acids |
| nerve tissue | What carries messages back and forth between the brain and every part of the body? |
