| A | B |
| Function of the Respiratory System | To move oxygen into the Body |
| Function of the Circulatory System | To move blood throughout the Body |
| Mucus | (Snot) that helps warm and filter air |
| Cilia | Help to Filter Air |
| Trachea | moves air to bronchi |
| Larynx | vibrates for sound |
| Bronchi | Connect Trachea to Lungs |
| Alveoli | Small sacs that expand inside your lungs |
| Inhaling | Diaphragm contracts downward |
| Exhaling | diaphragm relaxes upward |
| Diaphragm | Expands and Contracts to Inhale and Exhale |
| Oxygen | gas required by cells |
| Carbon Dioxide (CO2) | gas released as waste |
| Heart | the cardiac muscle |
| Arteries | Blood Vessels that lead away from the Heart |
| Veins | Blood Vessels that lead to the Heart |
| Capillaries | small blood vessels; exchanges happen here |
| Aorta | The largest Artery in the Body |
| Four | Number of Chambers in the Heart |
| Right and Left Atrium | Top Chambers of the Heart |
| Right and Left Ventricle | Lower Chambers of the Heart |
| Red Blood Cells | Carry oxygen, food, waste |