| A | B |
|---|
| processes food | Digestive System |
| A substance needed by the body for growth, repair, and maintenance | Nutrient |
| Produce saliva to begin the process of chemical digestion | Salivary Glands |
| A long muscular tube that food moves down | Esophagus |
| Food moves toward the stomach by | Peristalsis |
| A muscular sac with thick, expandable walls | Stomach |
| Where digestion of carbohydrates and proteins is completed, fats are digested, and nutrients are absorbed | Small Intestine |
| Line the internal surface of the small intestine | Villi |
| Where water and water-soluble vitamins are absorbed from undigested material | Large Intestine |
| The largest organ of the body. Produces bile | Liver |
| A small saclike organ connected to the liver | Gallbladder |
| A gland that secretes pancreatic fluid into small intestine | Pancreas |
| The combination of all chemical processes that take place within an organism | Metabolism |
| The amount of heat energy needed to raise the temperature of 1g of water by 1 degree celcius | Calorie |
| When a person refuses to eat and may overexercise | Anorexia |
| A person who eats huge amounts of food and then vomits or takes laxatives to get rid of food | Bulimia |
| The main organs of the excretory system | kidneys |
| The kidney filters | Nephrons |
