mechanoreceptors

Question 1

Pacinian corpuscle sensation encoded:

Answer 1

vibration

tapping

Question 2

Meissner’s corpuscel sensation encoded:

Answer 2

velocity

Question 3

Ruffini’s corpuscle sensation encoded:

Answer 3

Pressure

Question 4

Merkel’s disk sensation encoded:

Answer 4

location

Question 5

onion like structure in the subcutaneous area

Answer 5

pacinian corpuscle

Question 6

Present in non-hairy skin

Answer 6

meissner’s corpuscle

Question 7

encapsulated

Answer 7

ruffini’s corpuscle

Question 8

transducer is on sepithelial cells

Answer 8

merkel’s disk

Question 9

A-Alpha nerve fiber Sensory type:

Large alpha motoneuron

Answer 9

Ia -muscle spindle afferent

Ib - golgi tendon organs

Question 10

A-beta nerve fiber Sensory type:

Answer 10

II - secondary afferent of muscle spindle; touch and pressure

Question 11

A-gamma nerve fiber Sensory type:

Answer 11

motoneuron to muscle spindle

Question 12

A-delta nerve fiber Sensory type:

Answer 12

III - Fast pain, temp, touch and pressure

MOST SENSITIVE TO LA

Question 13

Most sensitive nerve fiber to LA

Answer 13

A-delta

Question 14

B nerve fiber Sensory type:

Answer 14

preganglionic autonomic fibers

Question 15

C nerve fiber Sensory type:

Answer 15

IV - slow pain and temp

• unmyelinated
• RESISTANT TO LA

Question 16

unmyelinated nerve fiber

Answer 16

C fibers

Question 17

Nerve fiber resistant to LA

Answer 17

C fibers

Question 18

Nerve fiber with largest diameter and fastest conduction velocity:

Answer 18

A-alpha

Question 19

Fiber size and velocity of A-beta nerve fibers

Answer 19

Medium / Medium

*touch and pressure

Question 20

Fiber size and velocity of A-delta nerve fibers

Answer 20

Small / Medium

*fast pain, temp, touch, and pressure

Question 21

Fiber size and velocity of C nerve fibers

Answer 21

Smallest / slowest
(unmyelinated)
*slow pain and temp

Question 22

RESTART CARDS ON

Answer 22

CNS 2 slide 34