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WorksheetsRespiratory System Quiz
Total questions: 15
Worksheet time: 8mins
What is the first step in the process of ventilation?
Air travels through the bronchial tubes
Inhalation begins
Exchange of gases
Air enters the respiratory system
Which muscle contracts and moves downward during inhalation?
Intercostal muscles
Abdominal muscles
Diaphragm
Pectoral muscles
Where does air rush into our respiratory system through?
Bronchial tubes
Nose
Mouth
Alveoli
What is the name of the tiny air sacs at the end of the bronchioles in the lungs?
Alveoli
Capillaries
Bronchi
Trachea
What happens as the air reaches the alveoli?
Digestion begins
Carbon dioxide diffuses into the alveoli
None of the above
Oxygen diffuses into the alveoli
What causes the chest cavity to become smaller during exhalation?
Contraction of diaphragm
Relaxation of intercostal muscles
Relaxation of diaphragm
Contraction of intercostal muscles
What is the function of alveoli in the respiratory system?
To increase the space in the chest cavity
To exchange gases between blood and air
To produce mucus for breathing
To warm the air entering the respiratory system
What is the purpose of the thin walls of the alveoli?
To increase the surface area for gas exchange
To store excess oxygen
To filter the air entering the lungs
To prevent the exchange of gases
What happens to the chest cavity during inhalation?
It collapses
It remains the same
It expands
It becomes smaller
Where does the exchange of gases take place in the respiratory system?
Bronchial tubes
Bronchi
Alveoli
Trachea
What is the final step in the process of ventilation?
Exhalation takes place
Exchange of gases
Air enters the respiratory system
Inhalation begins
What happens to the diaphragm and intercostal muscles during exhalation?
They contract
They expand
They remain the same
They relax
What happens to the space in the chest cavity during inhalation?
It increases
It remains the same
It decreases
It collapses
What is the function of mucus in the respiratory system?
To warm the air entering the respiratory system
To increase the surface area for gas exchange
To trap and remove particles and pathogens
To store excess oxygen
What is the role of the trachea in the respiratory system?
To exchange gases between blood and air
To carry air to the bronchi
To increase the space in the chest cavity
To filter the air entering the lungs
