| A | B |
|---|
| Septum | Muscle divinding the heart into left and right sides |
| Sinoatrial Node | Regulates Heart rate (pacemaker) |
| Aveoli | tiny air sacs in the lungs |
| Larynx | Voice Box containing two vocal chords and sits on top of the trachea |
| Trachea | "Windpipe" carrying the air to the Bronchi |
| Veins | Vessles carrying oxygen poor / carbon dioxide rich blood back to the heart. |
| Arteries | Vessels carrying oxygen rich blood from the heart to the body. |
| Aorta | Largest artery in the body, carries blood from the heart to the body |
| Hemoglobin | Chemical that binds oxygen to the RBC's |
| Epiglottis | Flap that covers trachea while eating or swallowing |
| Diaphragm | "sheet" of muscle that pulls down when inhaling, and up when exhaling, to provide space for air |
| Pharynx | The throat, connected to the mouth and nasal cavity |
| Pulmonary Artery | Artery carrying oxygen poor blood to the lungs from the heart to revive it's supply of oxygen |
| Pulmonary Vein | Vessel where oxygen rich blood comes back to the heart from the lungs |
| Valve | small "doors" inside the heart to keep blood from flowing backwards. |
