A chemoreceptor, also known as chemosensor, is a sensory receptor that transduces a chemical signal into an action potential. In more general terms, a chemosensor detects certain chemical stimuli in the environment.
Definition of CAROTID BODY. : a small body of vascular tissue that adjoins the carotid sinus, functions as a chemoreceptor sensitive to change in the oxygen content of blood, and mediates reflex changes in respiratory activity. ADVERTISEMENT. noun. Tweet. : a small body of vascular tissue that adjoins the carotid sinus, functions as a chemoreceptor sensitive to change in the oxygen content of blood, and mediates reflex changes in respiratory activity. chemoreceptor (kē´mōrēsep´tər) , n a specialized sensory end organ adapted for excitation by chemical substances (e.g., olfactory and gustatory receptors) or specialized sense organs of the carotid body that are sensitive to chemical changes in the bloodstream. Other chemoreceptors are the taste buds, which are sensitive to chemicals in the mouth, and the olfactory cells of the nose, which detect certain chemicals in the air. chemoreceptor trigger zone (CTZ). located in the floor of the fourth ventricle; sensitive to motion, uremia, apomorphine. A chemoreceptor, also known as chemosensor, is a sensory receptor that transduces a chemical signal into an action potential. In more general terms, a chemosensor detects certain chemical stimuli in the environment. 1 Examples of direct chemoreceptors include: 2  Taste buds in the gustatory system: The primary use of gustation as a type of chemoreception is for the detection of tasteants. 3  Aqueous chemical compounds come into contact with chemoreceptors in the mouth, such as taste buds on the tongue, and trigger responses. a sensory nerve cell activated by chemical stimuli. For example, chemoreceptors in the carotid artery are sensitive to the partial pressure of carbon dioxide in the blood; they signal the respiratory center in the brain to increase or decrease the rate of breathing. Other chemoreceptors are the taste buds, which are sensitive to chemicals in the mouth, and the olfactory cells of the nose, which detect certain chemicals in the air. chemoreceptor trigger zone (CTZ). located in the floor of the fourth ventricle; sensitive to motion, uremia, apomorphine. Noun. 1. chemoreceptor-a sensory receptor that responds to chemical stimuli. sense organ, sensory receptor, receptor-an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation. gustatory organ, taste bud, tastebud-an oval sensory end organ on the surface of the tongue. carotid body-a chemoreceptor located near the bifurcations of the carotid arteries; monitors oxygen content of the blood and helps control respiration. nose, olfactory organ-the organ of smell and entrance to the respiratory tract; the prominent part of the face of man or other mammals; he has a cold in the nose. The baroreflex or baroreceptor reflex is one of the body's homeostatic mechanisms that helps to maintain blood pressure at nearly constant levels. Baroreflex induced changes in blood pressure are mediated by both branches of the autonomic nervous system-that is the parasympathetic and sympathetic nerves. Baroreceptors are active even at normal blood pressures so that their activity informs the brain about both increases and decreases in blood pressure. Medical Definition of CHEMOREFLEX. : a physiological reflex initiated by a chemical stimulus or in a chemoreceptor. 2 ENTRIES FOUND: 1  1) chemoreflex (noun). 2  2) chemoreflex (adjective).  carotid body. noun. : a small body of vascular tissue that adjoins the carotid sinus, functions as a chemoreceptor sensitive to change in the oxygen content of blood, and mediates reflex changes in respiratory activity—called also carotid gland, glomus caroticum. Tweet. : a small body of vascular tissue that adjoins the carotid sinus, functions as a chemoreceptor sensitive to change in the oxygen content of blood, and mediates reflex changes in respiratory activity. ADVERTISEMENT. noun Medical Definition of CAROTID BODY. : a small body of vascular tissue that adjoins the carotid sinus, functions as a chemoreceptor sensitive to change in the oxygen content of blood, and mediates reflex changes in respiratory activity—called also carotid gland, glomus caroticum. Tweet. : a small body of vascular tissue that adjoins the carotid sinus, functions as a chemoreceptor sensitive to change in the oxygen content of blood, and mediates reflex changes in respiratory activity. ADVERTISEMENT. noun
http://www.merriam-webster.com/dictionary/carotid%20body http://medical-dictionary.thefreedictionary.com/chemoreceptor https://en.wikipedia.org/wiki/Chemoreceptor_reflex http://medical-dictionary.thefreedictionary.com/chemoreceptor http://www.thefreedictionary.com/chemoreceptor https://en.wikipedia.org/wiki/Baroreflex http://www.merriam-webster.com/medical/chemoreflex http://www.merriam-webster.com/dictionary/carotid%20body http://www.merriam-webster.com/dictionary/carotid%20body
chemoreceptor reflex definition