Medical MCQ - Which of the following is true about ventilation and perfusion in alveoli in an erect posture

Which of the following is true about ventilation and perfusion in alveoli in an erect posture

Ventilation/perfusion ratio is maximum at apex

Ventilation/perfusion ratio is maximum at base

Ventilation is maximum at apex

Perfusion is maximum at apex

Question Category:

Correct Answer:

Ventilation/perfusion ratio is maximum at apex

Description:

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.

Get More

Subject Mock Tests

Try practicing mock tests with over 200,000 questions from various medical subjects.

Attempt a mock test now

Mock Exam

Attempt an exam of 100 questions randomly chosen from all subjects.