PGY 206 FINAL EXAM || ALL ANSWERS ARE VALID.
More effective as alveolar radius decreases correct answers Identify the true statement abou
pulmonary surfactant:
Increase alveolar ventilation correct answers How would you change your breathing to decrease
systematic arterial PCO2?
Vascular resistance correct answers Which is lower in pulmonary arteries than systematic
arteries?
Alveolus correct answers Where does gas exchange occur in the lung?
Diaphragm contracts correct answers During a normal inspiration, which occurs first?
Residual volume correct answers What term describes the amount of gas in your lungs after a
maximal expiration?
Caused by cigarette smoking correct answers Which is true about emphysema, stroke, heart
disease, and lung cancer?
Adding correct answers The total pressure of a gas mixture is calculated by __________ the
partial pressures of the individual gases.
Carbon dioxide correct answers Which gas has a higher partial pressure in alveoli than room air?
Tennis court correct answers The area for gas exchange in your lungs is approximately equal to
the surface area of a:
Dissolved CO2 correct answers In your blood, which form of CO2 exerts a partial pressure?
, 100 mmHg correct answers What is the normal oxygen tension (PCO2) in systemic arterial
blood?
Medulla oblongata correct answers Which part of the brain creates the basic rhythm of automatic
breathing?
Abdominal muscles correct answers Which of the following is used to actively exhale?
Capillary PCO2 correct answers What aspect of blood chemistry stimulates breathing via the
central (medullary) chemoreceptor?
Pulmonary stretch receptors correct answers Which lung receptors are stimulated by stretch and
cause the Hering-Breuer reflex?
pH correct answers the oxyhemoglobin dissociation curve is shifted rightward by decreasing
what property of blood?
Apex is overventilated correct answers Which is true about ventilation-perfusion (V/Q) matching
in the lung of an upright person?
Oxygen correct answers Mitochondrial metabolism is possible because we inhale:
Intrapleural pressure becomes less negative correct answers What happens when someone gets
knifed in the chest?
Alveolar macrophages correct answers Which cell type removes foreign particles from the lung?
Heme centers reversibly bind O2 correct answers What is true about hemoglobin?
More effective as alveolar radius decreases correct answers Identify the true statement abou
pulmonary surfactant:
Increase alveolar ventilation correct answers How would you change your breathing to decrease
systematic arterial PCO2?
Vascular resistance correct answers Which is lower in pulmonary arteries than systematic
arteries?
Alveolus correct answers Where does gas exchange occur in the lung?
Diaphragm contracts correct answers During a normal inspiration, which occurs first?
Residual volume correct answers What term describes the amount of gas in your lungs after a
maximal expiration?
Caused by cigarette smoking correct answers Which is true about emphysema, stroke, heart
disease, and lung cancer?
Adding correct answers The total pressure of a gas mixture is calculated by __________ the
partial pressures of the individual gases.
Carbon dioxide correct answers Which gas has a higher partial pressure in alveoli than room air?
Tennis court correct answers The area for gas exchange in your lungs is approximately equal to
the surface area of a:
Dissolved CO2 correct answers In your blood, which form of CO2 exerts a partial pressure?
, 100 mmHg correct answers What is the normal oxygen tension (PCO2) in systemic arterial
blood?
Medulla oblongata correct answers Which part of the brain creates the basic rhythm of automatic
breathing?
Abdominal muscles correct answers Which of the following is used to actively exhale?
Capillary PCO2 correct answers What aspect of blood chemistry stimulates breathing via the
central (medullary) chemoreceptor?
Pulmonary stretch receptors correct answers Which lung receptors are stimulated by stretch and
cause the Hering-Breuer reflex?
pH correct answers the oxyhemoglobin dissociation curve is shifted rightward by decreasing
what property of blood?
Apex is overventilated correct answers Which is true about ventilation-perfusion (V/Q) matching
in the lung of an upright person?
Oxygen correct answers Mitochondrial metabolism is possible because we inhale:
Intrapleural pressure becomes less negative correct answers What happens when someone gets
knifed in the chest?
Alveolar macrophages correct answers Which cell type removes foreign particles from the lung?
Heme centers reversibly bind O2 correct answers What is true about hemoglobin?
