PSL300H1 Study Guide - Final Guide: Bulbous Corpuscle, Lamellar Corpuscle, Transient Receptor Potential Channel
Document Summary
May-27-13 12:12 pm proprioception nocioception corpuscle: onion like shape around nerve ending. Free endings rapid adaptation slow adaptation thermoreceptors (cold/warm) nociceptors. C-fibers crossed projections somatosensory maps slow pain fast pain descending pathway analgesics gate control mechanism deep somatic pain referred pain. Somatic receptors somatic sense receptors = all neurons, on skin or viscera proprioception = awareness of the position of body parts relative to each other nocioception = painful stimuli. Meissner"s corpuscles near surface of skin a. near surface of skin b. hair roots. Rate some rapid, some slow rapid adaptation slow adaptation a. temperature noxious stimuli b. hair movement flutter stroking steady pressure texture (non painful) vibrations skin stretch rapid adaptation slow adaptation deeper layers of skin deeper layers of skin. Used by thermoreceptors, family of cation. non selective, allow na+/ca+ influx = depolarizing cell, fires more! nociceptors: respond to various noxious stimuli.
