| A | B |
|---|
| cells | are the building blocks of all living things |
| organ | A part of the body that has a special job |
| protein | helps build strong muscles |
| Muscular & Circulatory System | a system that pumps blood, oxygen, and nutrients around your body. |
| skin | the largest organ in your body |
| bone marrow | The center of the bone where blood is made |
| muscle | Long strands of cells that make your body move |
| Integumentary System | This system protects the body from germs |
| Skeletal System | This system is made up of bones, tendons, ligaments, and teeth |
| Digestive System | This system moves food through the body and breaks it down |
| ribs | bones that protect your heart and lungs |
| minerals, vitamins | substances found in food that your body needs for growth and health |
| blood | carries oxygen and nutrients through out your body |
| heartbeat | the sound your heart makes when it pumps |
| skull | The bone that protects your brain |
| energy | The ability to do work |
| heart | a muscle that pumps blood through your body |
| germs | Tiny organisms that make us sick |
| oil glands | help keep our skin from drying out |
| veins | carry blood toward the heart |
| sweat glands | help keep us cool |
| Digestive System | includes the mouth, tongue, throat, esophagus, stomach, and intestines |
| over 650 | muscles in your body |
| 206 | bones in an adult body |
| teeth | made up of dentin and enamel |
