In situations of the neural control of breathing central che

In situations of the neural control of breathing, central chemoreceptors will be stimulated most in

a) decreased arterial PO2.

b) metabolic acidosis.

c) respiratory acidosis.

d) Both a. and b. would be equally strong stimuli.

e)Both b. and c. would be equally strong stimuli.

Solution

Answer:

e)Both b. and c. would be equally strong stimuli.

Reason:

The central chemoreceptors are mainly situated in brain specifically at the ventrolateral medullary surface & these receptors are stimulated via metabolic acidosis or respiratory acidosis due to high CO2 (hypercapnia) in blood across the brain low O2 finally trigger “CO2 blow off”