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Canada (161,798)
Neuroscience (289)
NROC64H3 (81)
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Touch.docx

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Department
Neuroscience
Course
NROC64H3
Professor
Niemier
Semester
Winter

Description
Touch Review notes Touchsensation of mechanical displacement your skin Includes the perception of itch painthermal and kinesthesis Kinesthesis perception of position and movement of the limbs Somatosensation all the sensory signals from your body Proprioception includes kinesthesisand vestibular receptorsFA Ithe slip rspond best to low frequency vibrations ie 550 Hz ie when your coffee slips and contacts your fingers as it slips this motion across skin will cause vibration When single FA I fiber is stimulated it produces wobbleends in Meissner corpuscles But all of these4 types of mechanoreceptors work together wheneve we contact an objectMuscle receptors muscle spindles Convery teh rate at which muscles fibers are chnagign in length ie lacking kinaesthetic sense means u are heavily reliant on visisonNeither cold nor warm fibers respond much in temp between 30 36Warmth fibers fire when the skin temperature aroud the receptors rises Thermorecpetors are also active when we make contact with an object that is warmer or cooler tahn the skinNoiceptors donot have seiclaized endings Are touch recptors that signal info about noxious stimulation that cuases damage or have the potential to casue dmaege Adelta fibers are myelinatedfast reposnf to strong pressure and heat C fibers reposing to no
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