Which of the Following Statements About the Ventilation/perfusion (V/Q) Ratio

Multiple Choice

Which of the following statements about the ventilation/perfusion (V/Q) ratio in a healthy person is true?

A) Blood flow and amount of ventilation are equal throughout the lungs.
B) The upper portion of the lungs has more ventilation than blood flow.
C) Amount of blood is greater than amount of oxygen in the lungs.
D) The lower portion of the lungs has more oxygen than perfusion.