Quiz on the Respiratory System

What is the term for normal quiet breathing?

• Apnea

• Hyperventilation

• Eupnea

• Dyspnea

What happens to blood flow to the lungs during exercise?

• It increases

• It decreases

• It fluctuates

• It remains the same

Which of the following is a protective mechanism that prevents excessive inflation of the lungs?

• Cough reflex

• Gag reflex

• Inflation reflex

• Sneeze reflex

What is the primary function of the respiratory membrane?

• Blood circulation

• Air filtration

• Sound production

• Gas exchange

What is the effect of aging on the respiratory system?

• Decreased blood O2 level

• Increased vital capacity

• Enhanced ciliary action

• Improved alveolar macrophage activity

What is the primary role of the bronchial arteries?

• Transport oxygen

• Supply blood to the lungs

• Facilitate gas exchange

• Remove carbon dioxide

What is the primary gas exchanged in the alveoli during respiration?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

Which structure in the respiratory system is responsible for filtering and humidifying the air?

• Trachea

• Nasal cavity

• Bronchioles

• Alveoli

What is the term for the maximum amount of air that can be exhaled after a maximum inhalation?

• Tidal volume

• Vital capacity

• Residual volume

• Inspiratory reserve volume

Which part of the brain regulates the rhythm of breathing?

• Cerebrum

• Cerebellum

• Medulla oblongata

• Pons