week 5A

Question 1

what are the 2 types of superficial cutaneous mechanoreceptors?

Answer 1

merkel cells + meisner corpuscle

Question 2

what are the 2 deep cutaneous mechanoreeptore?

Answer 2

pacinian corpusl and ruffini endings

Question 3

what % of hand does mekel cells inn?

Answer 3

25%

Question 4

what % of hand do messner inn?

Answer 4

40%

Question 5

what % of hand do ruffinin endings inn>

Answer 5

20%

Question 6

what percentage of hand do pacinian corpuscle inn?

Answer 6

15%

Question 7

what type of cutanous mechanorecepor inn the hand the most? the elat?

Answer 7

the most is the messner (40%)
the elast - pacinian (15%)

Question 8

what type of A beta afferent inn
merkel cel
meissner cor
pacinina cor
ruffini

Answer 8

mekel - type I slowly adaptin
meis - type I fast adapting

pacin - type II slow adaptin
ruf - type II fast adapting

Question 9

what is the fucntion of merkel cells?

Answer 9

deteect curvatere/edges of an object

Question 10

what is the physiology (recept/hotpots) of merkel +meissner cells?

Answer 10

small densly packed receptive feileds, multple hot spots

Question 11

what do meissner corpuscle fucntion?

Answer 11

stroking/velocity motion actoss kin

Question 12

what is the physiology(recept/hotspots) of ruffini + pacinian

Answer 12

large rececptive field wiht one hot spot

Question 13

what cutaneous emchanoreceptors has the lowest indentation thrshold?

Answer 13

pacininan corpuscle

Question 14

what is the function of ruffini ednings

Answer 14

skin stretch - KT tape

Question 15

what is teh function of pacinian

Answer 15

vibration - felling thru objects (braille?_

Question 16

what cutaneous mechanoreceptors has teh highest threshold of indentaiton?

Answer 16

ruffinin endings - skin stretch

Question 17

out of the two superficial cutaneous mechano receptors which has. a=lower threshold?

Answer 17

meissner lower than merkel (6 vs 30um)

Question 18

out of th etwo deep cutaneous mechanoreceptors which has teh higher idnentaion thrshold?

Answer 18

ruffini (skin stretch) - has highest vs pacinian (lowst)

Question 19

do u have to press hard to feel senation in merkel cells/

Answer 19

not rly - indentaiton threshol is moderate-low to feel edges/curvatere

Question 20

a beverage slipping out of hand or anythign related to grip control woild inn what cutaneous mechanoreceptor?

Answer 20

meissner - detects velocity.stroking/motiona corss skin

Question 21

putting socks on feet would be DTECTE DBY ____ cutaneous mechanoreceptors?

Answer 21

meissner

Question 22

holding. a basketball would acivat e____ cutaous mechno recpto as the skin is stretching

Answer 22

ruffini endings

Question 23

using a walking stick or reading braille would acgivate what cutanous mechanoreceptr?

Answer 23

pacinian corpuscle

Question 24

why is there such a low threshol in pacninian corpuscle mechanorecptors?

Answer 24

it can allow us to detect diffences in texture (like readin braille or between 2 fabrics)

Question 25

what mechanoreeptor is onion like depe within the skin?

Answer 25

pacinian

Question 26

what are branched fibres within a cylindrical capsul?

Answer 26

ruffini

Question 27

what type of cutaneous emchanorecpetors are disks?

Answer 27

meissner

Question 28

what type of cut mech rec are cells wedges along the dermis?

Answer 28

merkel cells

Question 29

meissner cells inn ___ % of the hand?

Answer 29

40

Question 30

merkel cells have the most inn within the hand true or false?

Answer 30

false - meissner corpusle do

Question 31

GO DO TABLE