The document discusses four body systems - respiratory, circulatory, digestive, and excretory. The respiratory system helps the body breathe by exchanging gases, taking in oxygen and releasing carbon dioxide. The lungs, trachea, and bronchial tubes are organs in the respiratory system.

1. Body Systems Mrs. Stone

2. Respiratory System The respiratory system is the system that helps you breath. We exchange gases during this process as we breath in oxygen and out carbon dioxide. The organs in this system include: Lungs Trachea Bronchial Tubes

3. Circulatory System

4. Digestive System

5. Excretory System