Peripheral chemoreceptors

Peripheral chemoreceptors are specialized sensors located in the body's carotid arteries and aortic arch that monitor the levels of oxygen, carbon dioxide, and pH in the blood. When oxygen levels drop or carbon dioxide levels increase, these receptors send signals to the brain to breathe faster and deeper, helping maintain proper blood gas balance. They play a vital role in the body's quick response to changes in oxygen availability, such as during exercise or in high altitudes, ensuring tissues receive sufficient oxygen for normal function.