Which of the following true about ventilation and perfusion in alveoli in erect posture?
The V/Q ratio can therefore be defined as the ratio of the amount of air reaching the alveoli per minute to the amount of blood reaching the alveoli per minute--a ratio of volumetric flow rates. ... The V/Q ratio can be measured with a ventilation/perfusion scan. A V/Q mismatch can cause a type 1 respiratory failure Ref: guyton and hall textbook of medical physiology 12 edition page number: 320,321,322
Ventilation/perfusion ratio is maxm at apex
Ventilation/perfusion ratio is maxm at base
Ventilation is max at apex
Perfusion is max at apex
Respiratory system