Capsaicin, the active ingredient in hot peppers, creates a burning sensationbecauseit destroys cells in the tongue releasing acid (H+) onto taste budsit causes an inflammatory response that attracts immune cells that release solublecytokines that bind and depolarize nociceptors○ it causes the local temperature of the exposed tissue to increase dramatically leading todepolarization of thermoreceptorsit binds and opens an ion channel on nociceptors that also happens to open in response toheat

Capsaicin, the active ingredient in hot peppers, creates a burning sensation because it binds and…

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Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter6: The Peripheral Nervous System: Afferent Division; Special Senses

Section: Chapter Questions

Problem 13RE

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Similar questions

Many diabetic patients are warned by their doctors to test their glucose levels by pricking the sides of their fingers rather than the pads. Pricking the sides avoids stimulating which receptor? Krause end bulbs Meissner’s corpuscles Ruffini ending Nociceptors
Watch this video (http://openstaxcollege.org/l/2point) to see a quick demonstration of two-point discrimination. Touching a specialized caliper to the surface of the skin will measure the distance between two points that are perceived as distinct stimuli versus a single stimulus. The patient keeps their eyes closed while the examiner switches between using both points of the caliper or just one. The patient then must indicate whether one or two stimuli are in contact with the skin. Why is the distance between the caliper points closer on the fingertips as opposed to the palm of the hand? And what do you think the distance would be on the arm, or the shoulder?
Practite go GO Olfactory cells and taste buds are normally stimulated by substances in solution stretching of the receptor cells the movement of otoliths movement of a cupula
Which of the following statements comparing the LGN and the retina is correct? O Both are involved in the reconstruction (as opposed to point-by-point deconstruction) of visual stimul Both have ciells that respond to lines of a particular onentation in their receptive field. O Both get significant feedback connections (top-down infuence O Both have cells with concentric centersurraundreteptive fields O The retina has odenteand off-kenterteceptive eds, while the LGN nly tus Ton-center receptive fields
Photoreceptors in the retina have special channels that are open to Na+ in the dark. When light hits photoreceptors, these special channels close. What can you cònclude from this? None of the above O Photoreceptors hyperpolarize to light Photoreceptors depolarize to light Photoreceptor voltage does not change in the presence of light
Sensory transduction in the hair cell is mediated by Mechanoreceptor Thermoreceptor CNG gated ion cahnnels P2X receptor
pse is required to link the gustatory receptor with the sensory neuron. This lends itself Depounio Part D- Signaling in Olfaction and Gustation Different stimuli of the two special senses trigger different methods of signaling within their receptors. How are the following stimuli transmitted? Drag and drop the stimuli into the mostpropriate bins depicting their method of transmission. • View Available Hint(s) Reset Help Umami chemicals Salt chemicals Odorants Bitter chemicals Sour chemicals Sweet chemicals Pesting plasma Actve Inactve Gproton aproten Receptor protein CAMP Inactive Gprotein Active G protein adenylate cyclase CAMP RECEPTOR CELL ATP Active 2nd messenge hctie 2nd meerger Submit Provide Feedback
The role of the ossicles is to of vibrations Decrease the intensity Increase the strenght O Change the wavelengths The fovea is the part of the retina that contains photoreceptors called: Cones Amacrine cells Rods Ganglion cells
Thermal sensations :-a- are evoked by all changes in environmental temperaturesb- are evoked by stimulation of thermo-sensitive pain receptorsc- are involved in regulation of metabolic activityd- are transmitted by Aβ sensory fibers
Which type of channel underlies sound transduction? Mechanically-gated Na channels O Mechanically-gated K channels Photosensitive Ca channels O Ligand-gated Na channels Ligand-gated K channels
What statement is true regarding the retinal pigment epithelium? Cells in the PE are the site of phototransduction Cells in the PE signal between rods and bipolar cells Cells in the PE have enzymes that convert the light-sensitive photopigments back to a useable form Cells in the PE send their axons out of the retina
Which of the following is an example of the process of transduction? Taste acceptance and rejection are processed in the hindbrain, while emotional reactions to taste are processed in forebrain. Different qualities of taste (sweet, salt, sour, bitter) activate different receptor cells in the taste buds. O A photon of light strikes a photopigment in a rod cell, changing the photopigment, which causes the close of ion channels, which reduces the rod's output of neurotransmitter. Molecules of alcohol evaporate from the surface of a liquid and get into your nasal passages.

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