Joint receptors

Question 1

types of jt receptors

Answer 1

• free nerve endings
• golgi ligament endings
• golgi-mazzoni corpuscles
• pacinian corpuscles
• ruffini endings

Question 2

free nerve endings: location

Answer 2

• jt capsule
• ligaments
• synovium
• fat pads

Question 3

free nerve endings: sensitivity

Answer 3

• one type sensitive to non-noxious mechanical stress

- other type sensitive to noxious mechanical or biochemical stimuli

Question 4

free nerve endings: primary distribution

Answer 4

all jts

Question 5

golgi ligament endings: location

Answer 5

• ligaments

- adjacent to ligaments’ bony attachment

Question 6

golgi ligament endings: sensitivity

Answer 6

tension or stretch to ligaments

Question 7

golgi ligament endings: primary distribution

Answer 7

majority of jts

Question 8

Golgi-Mazzoni corpuscles: location

Answer 8

jt capsule

Question 9

Golgi-Mazzoni corpuscles: sensitivity

Answer 9

compression of jt capsule

Question 10

Golgi-Mazzoni corpuscles: primary distribution

Answer 10

knee jt

jt capsule

Question 11

Pacinian corpuscles: location

Answer 11

fibrous layer of jt capsule

Question 12

Pacinian corpuscles: sensitivity

Answer 12

high frequency vibration, acceleration, and high velocity changes in jt position

Question 13

Pacinian corpuscles: primary distribution

Answer 13

all jts

Question 14

Ruffini endings: location

Answer 14

fibrous layer of jt capsule

Question 15

Ruffini endings: sensitivity

Answer 15

• stretching of jt capsule

- amplitude and velocity of jt position

Question 16

Ruffini endings: primary distribution

Answer 16

greater density in proximal jts

mostly in capsular regions