Sensory endings

Question 1

group Ia and II sensory axons

Answer 1

intrafusal muscle fibers

sensitive to muscle length

Question 2

group Ib sensory axons

Answer 2

GTO monitoring of muscle tension during isometric buildup of tension

Question 3

pacinian corpuscle

1. rapid or slow adapting?
2. where located
3. what sensation

Answer 3

1. rapidly adapting (large myelinated)
2. sub-Q of skin as well as mesentery, peritoneum, joint capsules
3. vibration and pressure

Question 4

rufini endings

1. rapid or slow adapting?
2. where located
3. what sensation

Answer 4

1. slowly adapting

2. skin, sub-Q tissue, joint capsule

Question 5

meissner corpuscles

1. rapid or slow adapting?
2. where located
3. what sensation

Answer 5

1. rapidly adapting (large myelianted)
2. glabrous (hairless) skin
3. dynamic, fine/light touch + position

Question 6

Merkel discs

1. rapid or slow adapting?
2. where located
   3, what sensation

Answer 6

1. slowly adapting (large, myelinaed)
2. basal epidermal layer + hair follices
3. pressure, deep static toucuh (Shapes and edges) + position

Question 7

free nerve endings

1. types and their description
2. location
3. what sensation

Answer 7

spinohalamic tract fibers

1. C: slow and unmyelianted
   Adelta: fast and myelinated
2. all skin, epidermis, some viscera
3. pain and temperature