In this lesson, we introduce the physiology of the respiratory system.
Objective
Understand the foundational physiology of the respiratory system.
Description
Define breathing and respiration. Explain what causes breathing and its purpose. Describe the contents of the thoracic and abdominal cavities and how they change during breathing. Understand why lungs cannot be moved directly at will and the principal muscle involved in breathing. Describe the diaphragm and the movement of the diaphragm during relaxed breathing. Explain problems that a person may have with their diaphragm.
Vocabulary
abdominal cavity, breathing, diaphragm, respiration, thoracic cavity
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