Blocking afferent action potentials from the chemoreceptors in the carotid and aortic bodies would interfere with the brain's ability to regulate breathing in response to all except changes in blood pressure and is denoted as option A.
This is referred to as the type of receptor which is stimulated by changes in the chemical composition of their immediate environment and there are different types with their distinct functions.
Blocking afferent action potentials from the chemoreceptors in the carotid and aortic bodies would interfere with the brain's ability to regulate breathing in response to changes in pH due to carbon dioxide level and changes in PO2 except that of blood pressure due to different parameters such as blood vessel etc which is therefor the reason why option A was chosen.
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The options are:
a. changes in blood pressure
b. changes in pH due to carbon dioxide levels
c. changes in PO2
d. changes in PCO2
e. All of the answers are correct.
