Read the given statements and select the correct option.
Statement I: Rate of breathing is regulated by respiratory centers present in the medulla oblongata.
Statement II: Changes in the 
level of the arterial blood control the rate of breathing.
Text Solution
Verified by ExpertsThe correct answer is:
A
Rate of breathing is mainly controlled by 
level in the blood. Excess 
mainly stimulate the respiratory centre of the brain and increase the inspiratory and expiratory signals to the respiratory muscles.
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