Which term describes the mechanical process of breathing due to pressure changes?

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Multiple Choice

Which term describes the mechanical process of breathing due to pressure changes?

Ventilation is the mechanical process of moving air into and out of the lungs, driven by pressure changes created when the diaphragm and chest muscles contract and relax. When these muscles expand the thoracic cavity, intrapulmonary pressure drops below atmospheric pressure, drawing air in (inspiration). Releasing them raises pressure, pushing air out (expiration). This movement of air by pressure differences is the essence of ventilation. The other terms describe different parts of breathing: respiration often refers to gas exchange at the alveolar level or cellular use of oxygen, hypoxia is a low blood or tissue oxygen level, and respiratory failure is when the lungs can no longer maintain adequate gas exchange.

Ventilation is the mechanical process of moving air into and out of the lungs, driven by pressure changes created when the diaphragm and chest muscles contract and relax. When these muscles expand the thoracic cavity, intrapulmonary pressure drops below atmospheric pressure, drawing air in (inspiration). Releasing them raises pressure, pushing air out (expiration). This movement of air by pressure differences is the essence of ventilation.

The other terms describe different parts of breathing: respiration often refers to gas exchange at the alveolar level or cellular use of oxygen, hypoxia is a low blood or tissue oxygen level, and respiratory failure is when the lungs can no longer maintain adequate gas exchange.

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