| A | B |
|---|
| Digestive system | The system that breaks down food so that the body cells can use it |
| Plasma | The liquid part of blood |
| Capillaries | Tiny blood vessels that connect arteries and veins |
| Respiratory system | The system that takes in oxygen and combines it with food to produce energy |
| White blood cells | Blood cells that fight bacteria |
| Esophagus | The tube that carries food from the mouth to the stomach |
| Veins | Blood vessels that return blood to the heart |
| Circulatory system | The system that carries blood through the body, delivering food and oxygen to all parts of the body |
| Platelets | Solids in the blood that help stop bleeding at an injury |
| Feces | Wastes expelled from the body |
| Arteries | Blood vessels that carry blood away from the heart |
| Red blood cells | Blood cells that carry oxygen and carbon dioxide |
| Enzymes | Substances that cause chemicals to change form in the body |
| Duodenum | The name for the first section of the small intestine |
| Bronchi | The two tubes that lead into your lungs |
| Jejunum | The name for the middle seciton of the small intestine |
| Ileum | The name for the last section of the small intestine |
