Specialized receptors mainly found in the carotid body, within the carotid arteries of the neck, which are sensitive to changes in the blood concentration of oxygen (P02), carbon dioxide (PC02) and acidity (pH).
The distal end of sensory dendrites especially adapted for chemical stimulation.
A cell which responds to the presence of a chemical compound by activating a nerve, e.g. a taste bud reacting to food or cells in the carotid body reacting to lowered oxygen and raised carbon dioxide in the blood.
Nerve ending outside of the central nervous system that reacts to certain chemical stimuli; may be part of a sensory organ (e.g., taste bud) or function independently (e.g., chemoreceptors in the aorta and other large blood vessels detect changes m flow and blood pressure).
A cell or group of cells that responds to the presence of specific chemical compounds by initiating an impulse in a sensory nerve. Chemoreceptors are found in the taste buds and in the mucous membranes of the nose.
A sense organ or sensory nerve ending (as in a taste bud) that is stimulated by and reacts to certain chemical stimuli and that is located outside the central nervous system. Chemoreceptors are found in the large arteries of the thorax and neck (carotid and aortic bodies), the taste buds, and the olfactory cells of the nose.
Specialized receptors that are activated by certain chemicals.
The neurosensory units which identify alterations in the molecular makeup of the luminal contents.