Pulmonary Physiology Quiz
A quiz about the pulmonary physiology
1. What covers the inner surface of the chest wall and the lung, respectively, and are normally in close apposition?
Alveoli
Bronchi
Pleura
Phrenic nerves
2. What is the primary cause of expiration?
Contraction of the diaphragm
Contraction of external intercostal muscles
Elastic recoil of the lungs
Contraction of the internal intercostal muscles
3. Where do normal breath sounds originate mainly from?
Bronchi
Alveoli
Larynx and trachea
Pulmonary capillaries
4. What is the gas exchange unit of the lung?
Alveoli
Bronchioles
Phrenic nerves
Trachea
5. What is the mixture of phospholipids that reduces surface tension and counteracts the tendency of alveoli to collapse under surface tension?
Surfactant
Mucin
Keratin
Collagen
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