Flashcards in Mechanoreception No.1 Deck (43)
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1
what is mechanorception
detection of mechanical stimuli
with mechanoreceptors
2
what is adequate stimulus
pressure
vibration
tension
3
what is touch
sensory experience when mechanoreceptors are excited
involves CNS
4
what is exteroceptive
give information about things coming into contact with the body
5
what is proprioception
awareness of position
6
what is exteroceptors
muscosala nd skin receps
- mehanoreceps
-nociceptors
-thermoreceps
- chemoreceps
PDL Mechanoreceps
7
what are proprioceptors
PDL mechanoreceps
muscle spindles
joint recess
golgi tendon organs
inner ear
8
what do the mechanorecps of mucosa do
food texture- swallow food suitable
imp for mastication
9
what is function of PDL ligament mechanoreceps
forces of teeth
10
what are the mechanoreps in muscle
muscle spindles - monitor muscle length
11
what are mechanoreceps in joint recess useful for
joint position and movement
12
what sit he effect of stimulation of mechanorecps
sensation of touch
reflexes - jaw jerk, salivary reflexes
interact other sensory modalities - rubbing
13
what is the theory of vibraject
vibrating to activate the mechanorecps with vibration at same place of place activating nociceptors therefore trying to gate close and inhibit 3pain path
14
types of mechanoreceptorrs
physioloial classification
- aaptative properties -receptive field size
anatomical classification
15
what is rapidly adopting
AP force fires and then stops and adapts to force and maybe fires again when force goes off respond to changing states
16
what si slow adapting
apply same force and some receptors fire ad detect AP's thro whole duration doesn't adapt or very slow adapts
17
what are the four types of mechanoreceps
RA I
RA II
SA I
SA II
18
what is a receptive field
the area where a stimulus will affect the receptor covered by one receptor
19
what are the properties of RA I
small receptive field and rapid adaptation
20
what are the properties of RA II
large receptive field and rapid adaptation
21
what are the properties of SA I
small receptive field and slow adaptation
22
what are the properties of SA II
large receptive field and slow adaptation
23
what are some mechanoreceptors
meissners corpuscle
pacianian corpuscle
merkel cells
Ruffini ending
24
what are some RA I receptors
preset in
- oral mucosa
- vermillion border
- mucosa of lip
- hard palate
25
what are some RA II receptors
pacinian corpuscles
depp in mucosa
rare in oral mucosa
26
what are some SA I receptors
present in
- tongue
- lips
- cheeks
27
what ar some SA II Receptors
ruffini endings
PDL
28
what is transduction
mechanical to electrical energy
causes deep to AP
29
what is a parent axon
type nerve carry info
A- beta large myelinated fibres- fast
30
