BIOD 331 Module 5 Outcomes | Questions with Correct Answers
Q: What are the major structures of the respiratory system? A: Nasal cavity, pharynx,
larynx, trachea, bronchi, bronchioles, alveoli, lungs, diaphragm, intercostal muscles.
Q: What is the primary site of gas exchange? A: Alveoli.
Q: What controls the rate and depth of respiration? A: The medulla oblongata and
chemoreceptors (monitor CO₂, O₂, and pH).
Q: Define ventilation. A: The movement of air into and out of the lungs.
Q: Define perfusion. A: The flow of blood through the pulmonary capillaries for gas
exchange.
Q: What is a ventilation-perfusion (V/Q) mismatch? A: A condition where air and blood
flow in the lungs are not properly matched, impairing gas exchange.
Q: What are common causes of a V/Q mismatch? A: Pulmonary embolism, pneumonia,
COPD.
Q: What causes asthma? A: Hypersensitivity reactions leading to bronchoconstriction,
inflammation, and mucus production.
Q: What are the symptoms of asthma? A: Wheezing, chest tightness, dyspnea, and cough
(often at night).
Q: What is the treatment for asthma? A: Rescue inhalers (SABAs), inhaled
corticosteroids, leukotriene modifiers, LABAs.
Q: What are the major structures of the respiratory system? A: Nasal cavity, pharynx,
larynx, trachea, bronchi, bronchioles, alveoli, lungs, diaphragm, intercostal muscles.
Q: What is the primary site of gas exchange? A: Alveoli.
Q: What controls the rate and depth of respiration? A: The medulla oblongata and
chemoreceptors (monitor CO₂, O₂, and pH).
Q: Define ventilation. A: The movement of air into and out of the lungs.
Q: Define perfusion. A: The flow of blood through the pulmonary capillaries for gas
exchange.
Q: What is a ventilation-perfusion (V/Q) mismatch? A: A condition where air and blood
flow in the lungs are not properly matched, impairing gas exchange.
Q: What are common causes of a V/Q mismatch? A: Pulmonary embolism, pneumonia,
COPD.
Q: What causes asthma? A: Hypersensitivity reactions leading to bronchoconstriction,
inflammation, and mucus production.
Q: What are the symptoms of asthma? A: Wheezing, chest tightness, dyspnea, and cough
(often at night).
Q: What is the treatment for asthma? A: Rescue inhalers (SABAs), inhaled
corticosteroids, leukotriene modifiers, LABAs.
