1.

Which of the following is not a strong stimulus comparatively for the respiratory centre of brain:a) shortage of oxygen in blood b) excess of co2 in blood c) excess of lactic acid in bloodd) lowering of ph

Answer»

ANSWER:

A) shortage of OXYGEN

Because the receptors in aortic arch and CAROTID artery can recognize changes in CO2 and H+ concentration, not oxygen.



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