mechano and thermo sensations Flashcards
qualitatively diverse percepts of temperatuere as a result of the operation of complicated central neural mechanisms along the thermosensory pathway
thermosensation
importance of mechanosensation
a. fluent speech
b. food manipulation
c. periodontal forces
temperature of lips
34-35C
temperature of face
33-34
temperature of tongue
36-37c
MAXIMUM BITE force
50-70kg
maximum chewing force
7-15kg
slow adapting and respond to light touch
merkels disk
slow adapting and sensitive to stretch
ruffinis endings
meissners corpuscle is
rapidly adapting sensitive to low frequency vibrations and fine touch
sensitive to high frequency
pacinian corpuscles
cheek mucosa transfers temperature faster than the hard palate this is because
it is thinner and less keratinzied
factors affecting degree and rate of transfer of temp
a. thickness of epithelium (thicker the slower)
b. degree of keratinization (more keratinized more slow )
c.amount of saliva present (higher, faster)
c-fibers polymydal nociceptors temperature
40-45C
warm fibers
37C