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Questions and Answers
What is the primary effect of emphysema on the lungs?
What is the primary effect of emphysema on the lungs?
- Enhanced oxygen delivery to the bloodstream
- Destruction of alveolar walls (correct)
- Reduction in lung expansion
- Increased surface area for gas exchange
How does emphysema affect gas exchange in the lungs?
How does emphysema affect gas exchange in the lungs?
- Increases the amount of CO2 in the blood
- Improves ventilation efficiency
- Decreases the amount of oxygen that reaches the bloodstream (correct)
- Prevents airflow into the lungs
Which result directly arises from the impairment caused by emphysema?
Which result directly arises from the impairment caused by emphysema?
- Air sac contraction
- Overdistension of alveoli (correct)
- Increased lung capacity
- Enhanced carbon monoxide removal
What is a consequence of the permanent dilation of air sacs in emphysema?
What is a consequence of the permanent dilation of air sacs in emphysema?
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Emphysema primarily affects which aspect of respiratory physiology?
Emphysema primarily affects which aspect of respiratory physiology?
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Study Notes
Emphysema Overview
- Emphysema is a chronic lung disease that progressively damages lung tissue.
- Characterized by the destruction of alveolar walls, leading to over-distended air sacs.
Impaired Gas Exchange
- The disease results in reduced efficiency of gas exchange between lungs and bloodstream.
- Oxygen (O2) and carbon dioxide (CO2) exchange is compromised due to damaged alveolar structure.
- Decreased surface area in the lungs limits the amount of oxygen available to the body.
Consequences of Emphysema
- Reduced oxygen supply can lead to symptoms such as shortness of breath and fatigue.
- Constant dilation of air sacs contributes to the overall decline in lung function over time.
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