| A | B |
| digestive | helps our body use the food we eat |
| respiratory | supplies oxygen to blood cells and gets rid of carbon dioxide; allows us to breathe |
| integumentary | protects the body; it is the skin |
| muscular | allows the body to move |
| circulatory | transports food, oxygen, and wastes throughout the body |
| skeletal | provides out body's framework, giving us shape and support |
| nervous | carries messages throughout the body to and from the brain and spinal cord |
| endocrine | helps our body function properly; produces hormones |
| excretory | allows the body to eliminate waste |
| reproductive | produces sperm cells in males and egg cells in females |
| immune | helps the body fight disease |