RESPIRATORY PHYSIOLOGY
52 MULTIPLE CHOICE QUESTIONS WITH ANSWERS
1. Which of the following is NOT a functon of the lungs?
A. Metabolism
B. Serves as a reservoir of blood for the lef ventricle.
C. It is a flter to protect the systemic vasculature
D. Facilitates the exchange of O2 and CO2 between air and blood.
E. All of the above are true.
Correct Answer: E
2. Which of the following is in the correct path of CO2 from the tssue to the atmosphere?
A. Reacton with H2O to make H2CO3, dissociaton to H+ and HCO3-, H+ combines with imidazoole side
chain of hemoglobin, carried back to lungs as HHb+ and HCO3-, reverse reacton forms CO2.
B. O2 is metabolizoed to CO2, reacton with H2O to make H2CO3, H2CO3 combines with imidazoole side
chain of hemoglobin, H2CO3Hb+ is carried back to the lungs, reverse reacton forms CO2.
C. Reacton with H2O to make H2CO3, dissociaton to H+ and HCO3-, HCO3- combines with imidazoole
side chain of hemoglobin, carried back to the lungs as HCO3-Hb+ and H+, reverse reacton forms CO2.
,D. O2 is metabolizoed to CO2, reacton with H2O to make H2CO3, dissociaton to H+ and HCO3-, carried
back to lungs in this form, reverse reacton forms CO2.
Correct Answer: A
3. Which of the following is NOT an efector of respiraton?
A. Heart
B. diaphragm
C. intercostals
D. Trapezoius.
Correct Answer: D
, 4. Which of the following is the frst branching of the bronchial tree that has gas exchanging capabilites?
A. Terminal bronchioles.
B. Respiratory bronchioles.
C. Alveoli
D. segmental bronchi
E. alveolar ducts.
Correct Answer: B
5. Which of the following could NOT be part of an acinus?
A. alveolar sacs
B. Alveolar ducts
C. Terminal bronchioles
D. Respiratory bronchiole
Correct Answer: C
52 MULTIPLE CHOICE QUESTIONS WITH ANSWERS
1. Which of the following is NOT a functon of the lungs?
A. Metabolism
B. Serves as a reservoir of blood for the lef ventricle.
C. It is a flter to protect the systemic vasculature
D. Facilitates the exchange of O2 and CO2 between air and blood.
E. All of the above are true.
Correct Answer: E
2. Which of the following is in the correct path of CO2 from the tssue to the atmosphere?
A. Reacton with H2O to make H2CO3, dissociaton to H+ and HCO3-, H+ combines with imidazoole side
chain of hemoglobin, carried back to lungs as HHb+ and HCO3-, reverse reacton forms CO2.
B. O2 is metabolizoed to CO2, reacton with H2O to make H2CO3, H2CO3 combines with imidazoole side
chain of hemoglobin, H2CO3Hb+ is carried back to the lungs, reverse reacton forms CO2.
C. Reacton with H2O to make H2CO3, dissociaton to H+ and HCO3-, HCO3- combines with imidazoole
side chain of hemoglobin, carried back to the lungs as HCO3-Hb+ and H+, reverse reacton forms CO2.
,D. O2 is metabolizoed to CO2, reacton with H2O to make H2CO3, dissociaton to H+ and HCO3-, carried
back to lungs in this form, reverse reacton forms CO2.
Correct Answer: A
3. Which of the following is NOT an efector of respiraton?
A. Heart
B. diaphragm
C. intercostals
D. Trapezoius.
Correct Answer: D
, 4. Which of the following is the frst branching of the bronchial tree that has gas exchanging capabilites?
A. Terminal bronchioles.
B. Respiratory bronchioles.
C. Alveoli
D. segmental bronchi
E. alveolar ducts.
Correct Answer: B
5. Which of the following could NOT be part of an acinus?
A. alveolar sacs
B. Alveolar ducts
C. Terminal bronchioles
D. Respiratory bronchiole
Correct Answer: C
