Respiratory | External Respiration: Ventilation Perfusion Coupling

Correction @27:50 , the ventilation INCREASES as we go down from the Apex to the Base, but the perfusion increases SIGNIFICANTLY more. Since Perfusion increases more than Ventilation as we move to the base of the lung, the V/Q ration decreases at the base

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In this lecture Professor Zach Murphy will be teaching you about external respiration, simply known as breathing. During this lecture we will be discussing ventilation perfusion coupling. We hope you enjoy this lecture and be sure to support us below!

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Point of correction- The lower zones of the lung ventilate better than the upper zones and the middle zones have
intermediate ventilation.

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[BlaackAnchor]

At time 27:30, you said that ventilation decreases from apex to base, but actually it increases from apex to base of the lung. Perfusion also increases from apex to base, but much more significantly that we have a lower V/Q at the base.