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Questions and Answers
Which of the following is NOT a part of the respiratory system?
Which of the following is NOT a part of the respiratory system?
- Esophagus (correct)
- Pharynx
- Larynx
- Alveoli
Which law states that gas volume is inversely proportional to pressure?
Which law states that gas volume is inversely proportional to pressure?
- Charles's law
- Avogadro's law
- Boyle's law (correct)
- Dalton's law
Which of the following diseases reduce FVC and inspiratory reserve volume?
Which of the following diseases reduce FVC and inspiratory reserve volume?
- Emphysema
- Asthma
- Chronic bronchitis
- Pulmonary fibrosis (correct)
What factors does airway resistance depend on?
What factors does airway resistance depend on?
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Which law shows the relationship between resistance and airway diameter?
Which law shows the relationship between resistance and airway diameter?
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Which disease can cause air trapping and reduce FEV1?
Which disease can cause air trapping and reduce FEV1?
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What helps prevent airway collapse in expiration?
What helps prevent airway collapse in expiration?
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Study Notes
- The respiratory system obtains oxygen and eliminates carbon dioxide.
- It includes nasal passages, pharynx, larynx, trachea, bronchi, bronchioles, and alveoli.
- Mechanics of breathing involve changing thoracic cavity volume and lung pressure.
- Boyle's law states that gas volume is inversely proportional to pressure.
- Obstructive diseases reduce FEV1 and can cause air trapping.
- Restrictive diseases reduce FVC and inspiratory reserve volume.
- Airway resistance depends on factors like diameter and flow type.
- Poiseuille's law shows the relationship between resistance and airway diameter.
- Asthma exacerbations increase airway resistance and cause wheezing.
- Elastic recoil helps prevent airway collapse in expiration.
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