Medical dictionary. 2011.
chemoreceptor — Any cell that is activated by a change in its chemical milieu and results in a nerve impulse. Such cells can be either 1) “transducer” cells innervated by sensory nerve fibers ( e.g., the gustatory receptor cells of the taste buds; … Medical dictionary
Chemoreceptor — 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. Contents 1 Classes 2 Cellular… … Wikipedia
Chemoreceptor trigger zone — The chemoreceptor trigger zone (CTZ), is an area of the medulla that receives inputs from blood borne drugs or hormones, and communicates with the vomiting center, to initiate vomiting. The CTZ is close to the area postrema on the floor of the… … Wikipedia
nervous system, human — ▪ anatomy Introduction system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… … Universalium
Somatosensory system — The somatosensory system is a widespread and diverse sensory system comprising the receptors and processing centres to produce the sensory modalities touch, temperature, proprioception (body position), and nociception (pain). The sensory… … Wikipedia
chemoreception — chemoreceptive /kee moh ri sep tiv, kem oh /, adj. /kee moh ri sep sheuhn, kem oh /, n. the physiological response to chemical stimuli. [1915 20; CHEMO + RECEPTION] * * * Sensory process by which organisms respond to external chemical stimuli, by … Universalium
chemodectoma — Aortic body, carotid body, chemoreceptor, or glomus jugulare tumor; nonchromaffin paraganglioma; receptoma; a relatively rare, usually benign neoplasm originating in the chemoreceptor tissue of the … Medical dictionary
Catecholamine — Pronounced cat·e·chol·amine. An amine derived from the amino acid tyrosine examples include epinephrine (adrenaline), norepinephrine (noradrenaline), and dopamine that act as hormones or neurotransmitters. There are a number of disorders… … Medical dictionary
Dopamine — For other uses, see Dopamine (disambiguation). Dopamine … Wikipedia
Vomiting — Emesis redirects here. For the butterfly genus, see Emesis (genus). Heaving redirects here. For the up and down motion, see Heave. Puke redirects here. For the district in Albania, see Pukë District. For the town in Albania, see Pukë. Vomiting … Wikipedia
