（ ） are any of the small air spaces in the lungs where leaves the and oxygen enters it.
A: Cilia
B: Bronchioles
C: Tracheae
D: Pulmonary alveoli
A: Cilia
B: Bronchioles
C: Tracheae
D: Pulmonary alveoli
举一反三
- The small air sacs in the lungs through which gases are exchanged between the atmosphere and the blood are the __.
- Pulmonary alveoli are the main part of lung gas exchange and the functional unit of lung.
- When the diameter of the fine particles in the haze is 10 microns, it can directly enter the alveoli and bronchioles of the human body, stimulating the bronchoconstriction, affecting the ventilation function of the alveoli and causing hypoxia induced by the body.
- In which of the following locations do coarse crackles mainly occur? A: Bronchiole B: Main bronchus C: Bronchia D: Alveoli E: Terminal bronchioles
- 1. When the diameter of the fine particles in the sputum is 10 microns, it can directly enter the alveoli and bronchioles of the human body, stimulating the bronchoconstriction, affecting the ventilation function of the alveoli and causing hypoxia induced by the body.