What is a chemosensory?
sensitive to chemical stimuli, as the sensory nerve endings that mediate taste and smell.
What senses do humans have that are chemosensory?
All animals and microorganisms such as bacteria exhibit this latter type of chemoreception, but the two commonly recognized chemosensory systems are the senses of taste, or gustation, and smell, or olfaction.
Where is the chemosensory located?
Chemosensory clusters are located in the larynx distally to the portion in which are present laryngeal taste buds and proximally to the region in which solitary chemosensory cells are found. Rarely, chemosensory clusters may be found in the distal portion of the airway.
What are chemoreceptors sensitive to?
Chemoreceptor Reflex Central chemoreceptors are sensitive to increases in arterial carbon dioxide and decreases in arterial pH. Hypercarbia elicits a rapid and vigorous increase in minute ventilation (see Chapter 29).
What is chemoreceptor in psychology?
n. a sensory nerve ending, such as any of those in the taste buds or olfactory epithelium, that is capable of reacting to certain chemical stimuli.
What part of brain processes chemoreceptors?
Central chemoreceptors, first localized to areas on the ventral surface of the medulla, now are thought to be present in many locations within the brainstem, cerebellum, hypothalamus and midbrain (133, 143, 144, 158, 166, 226, 257).
Where are chemosensory cells located?
Solitary chemosensory cells (SCCs) (also called solitary chemoreceptor cells) are isolated elements located in epithelia of the apparatuses of endodermic origin (such as respiratory and digestive apparatuses). In the aquatic vertebrates, SCCs are also present in the skin.
What is an example of a Mechanoreceptor?
n. a receptor that is sensitive to mechanical forms of stimuli. Examples of mechanoreceptors are the receptors in the ear that translate sound waves into nerve impulses, the touch receptors in the skin, and the receptors in the joints and muscles (see proprioceptor).
What are chemoreceptors in simple terms?
Definition of chemoreceptor : a sense organ (such as a taste bud) responding to chemical stimuli.
How are chemoreceptors activated?
Peripheral chemoreceptors are activated by changes in the partial pressure of oxygen and trigger respiratory drive changes aimed at maintaining normal partial pressure levels.
What are the olfactory receptors?
Olfactory receptors are able to detect air-borne odour molecules that enter the nasal cavity and bind to olfactory receptors. The activation of olfactory receptors results in olfactory receptor neurons sending an impulse to the brain’s olfactory system.
What is chemosensory?
chemosensory an organ or structure that is able to detect the presence of specific chemicals. Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
What do we know about chemosensory perception of olfaction and taste?
There has been little study of chemosensory perception for stimuli presented to olfaction or taste, or of gustatory-olfactory interactions underlying flavor perception (Spence, 2015; Welge-Lussen, Husner, Wolfensberger, & Hummel, 2009).
Is your sense of smell part of your chemosensory system?
According to the National Institutes of Health, your sense of smell–like your sense of taste–is part of your chemosensory system, or the chemical senses. This review is intended to summarize and discuss the significance of extraoral taste receptors and other chemosensory processors for ayurvedic pharmacology.
What is the medical term for perception of chemical stimulus?
(kē′mō-sĕn′sə-rē, kĕm′ō-) adj. Relating to the perception of a chemical stimulus by sensory means. Used especially of olfactory reception. The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. chemosensory