Download Lesson 2: Respiratory System

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Cycle of the Respiratory system
Nose/Mouth
Larynx
Trachea
Bronchi
Bronchioles
Oxygen
Alveoli/air sacs
Capillaries (web of capillaries are on the air sacs)
Red Blood Cells
Body Cells
Diaphragm-a muscle that is below the lungs that helps your
breathe in and out
Circulatory and Respiratory System work together to get oxygen
to the cells and remove carbon dioxide from the cell. Oxygen is
transported from the air sacs (part of respiratory system) to the
capillaries (part of the circulatory system).
Carbon
Dioxide