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Disorders of the Excretory System

CO2, pH and...

Question

$C O_{2}$ , $p H$ and $O_{2}$ level in the blood is detected by which receptors?

A

Baroreceptors

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B

Chemoreceptors

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C

Sensoryreceptors

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D

Baroreceptors and Chemoreceptors

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Solution

The correct option is B Chemoreceptors
Chemoreceptors present in the carotid body, venacava and aortic sinus and responsible for receiving change in chemical composition of blood. CO $_{2}$ , pH and O $_{2}$ levels in the blood are detected by the central chemoreceptors. Changes in CO $_{2}$ level in blood is detected by chemoreceptors present in carotid bodies, O $_{2}$ level is detected by the chemoreceptors present in Aortic bodies and changes in pH is detected by chemoreceptors present in the venacava and also that of carotid bodies and aortic bodies.
So, the correct answer is B.

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