The Respiratory System
Students will describe the structures of the respiratory system and explain the mechanics of breathing and the exchange of oxygen and carbon dioxide between air and blood.
Key Questions
- Explain the role of each structure in the respiratory tract from the nasal passages to the alveoli.
- Describe the pressure changes that drive inhalation and exhalation.
- Analyze how gas exchange occurs across the alveolar membrane and why surface area and membrane thickness matter.
Ontario Curriculum Expectations
Suggested Methodologies
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