A carotid body is a small mass of tissue in the carotid sinus containing chemoreceptors that monitor levels of oxygen, carbon dioxide, and hydrogen ions in the blood. If the oxygen level falls, the chemoreceptors send impulses to the cardiac and respiratory centers in the brain, which promote increases in heart and respiration rates. It can give rise to carotid body tumors.
Related categories• ANATOMY AND PHYSIOLOGY
Home • About • Copyright © The Worlds of David Darling • Encyclopedia of Alternative Energy • Contact