Chemoreceptors in the Medulla Oblongata are Not Sensitive To

Question

Chemoreceptors in the medulla oblongata are not sensitive to
A)oxygen.
B)carbon dioxide.
C)hydrogen ions.
D)oxygen and carbon dioxide.

Accepted Answer

Chemoreceptors in the medulla oblongata are primarily sensitive to changes in carbon dioxide and hydrogen ion concentrations in the cerebrospinal fluid, not directly to oxygen levels. Oxygen levels are mainly detected by peripheral chemoreceptors located in the carotid and aortic bodies.