Question
During inspiration, lung volume expands as a result of the ____ of the diaphragm and intercostal muscles, this expands the thoracic cavity.
Answer
During inspiration, lung volume expands as a result of the contraction of the diaphragm and intercostal muscles, this expands the thoracic cavity.
Due to this increase in volume, the pressure is decreased
The pressure gradient between the atmosphere and the thoracic cavity allows air to rush into the lungs; inhalation occurs
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