Question

Which of the following is the peripheral chemoreceptor?

• A. Aoritic body
• B. Carotid body
• C. Both A and B
• D. Spinal nerve

Answer 1

The correct option is C Both A and B

Peripheral chemoreceptors are made up of aortic and carotid bodies. Aortic body control the changes in blood oxygen and carbon dioxide. But carotid body detects changes in pH along with O${}_2$ and CO${}_2$.

So the correct answer is 'Both A and B'.