True statement regarding pulmonary ventilation is -
Apical alveoli have low ventilation and perfusion per unit volume of the lung, whereas the basal alveoli have high ventilation and perfusion.
Ventilation-perfusion ratio and the PaO2 is maximum at the apex. PCO2 is maximum at the base.
PaO2 is maximum at the apex
V/Q is maximum at the base
Ventilation per unit lung volume is maximum at the apex
Blood circulation is minimum at the base