| A | B |
|---|
| Skeletal System | gives support and shape to the body |
| Muscular System | allows human to move body and its parts |
| Integumentary System | forms a protective covering to prevent injury and disease |
| Digestive System | breaks down food into simpler substances that the body can absorb and use to stay alive |
| Circulatory System | takes oxygen and nutrients to cells and removes carbon dioxide and other wastes from cells |
| Immune (Lymphatic) System | traps and destroys infection causing bacteria and viruses |
| Respiratory System | takes oxygen into the body and releases carbon dioxide |
| Excretory (Urinary) System | removes various wastes from the body |
| Nervous System | receives, interprets, and sends messages throughout the body |
| Endocrine System | regulates growth, reproduction, and the body's use of food using hormones |
| Reproductive System | allows body to produce offspring |
