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WorksheetsRespiratory System - overview
Total questions: 10
Worksheet time: 8mins
For how long can a person survive without breathing?
2 minutes
10 minutes
30 minutes
10 hours
What is the main function of the alveoli?
Gas exchange
Air filtration
Air humidification
Air movement
What is the percentage of oxygen in the atmosphere?
10%
21%
50%
100%
Which part of the respiratory system is responsible for voice production?
Larynx
Trachea
Bronchi
Alveoli
What happens to the diaphragm during inhalation?
Contracts
Relaxes
No change
Moves up
What is the main function of CO2 in the respiratory system?
Removal of waste gas only
Removal of waste gas and regulation of blood pH
Oxygen transport
Air filtration
Which blood vessel carries oxygenated blood from the lungs to the heart?
Pulmonary vein
Pulmonary artery
Aorta
Vena cava
What is the first thing that happens when a person inhales?
Open question
Diaphragm contracts
Air enters the lungs
Oxygen is absorbed
Which gas is primarily exchanged in the alveoli?
Oxygen
Nitrogen
Carbon dioxide
Hydrogen
What is the role of the nasal cavity in the respiratory system?
Oxygen transport
Voice production
Air filtration and humidification
Gas exchange
