Sensory Receptors

Question 1

What are the three nonencapsulated receptors?

Answer 1

Free nerve endings

Merkel’s disk

Hair follicle

Question 2

What is the function of free nerve endings? Are they fast or slow adapting? Are they encapsulated?

Answer 2

Nonencapsulated, slow adapting fibers for PAIN and TEMPERATURE

Question 3

What is the function of Merkel’s disk? Are they fast or slow adapting? Are they encapsulated?

Answer 3

Nonencapsulated, slow adapting fibers for TOUCH

Question 4

What is the function of hair follicles? Are they fast or slow adapting? Are they encapsulated?

Answer 4

Nonencapsulated, fast adapting fibers located anywhere there is hair

Question 5

What is the function of Meissner’s corpuscle? Encapsulated? Fast or slow adapting?

Answer 5

Encapsulated, fast adapting fiber for 2 pt discrimination

Question 6

What is the function of Pacinian corpuscles? Encapsulated? Fast or slow adapting?

Answer 6

Encapsulated, fast adapting fibers that sense vibration and pressure

Question 7

What is the function of Ruffini endings? Encapsulated? Fast or slow adapting?

Answer 7

Encapsulated, slow adapting fibers for stretch and pressure

Question 8

What is the function of Joint receptors? Encapsulated? Fast or slow adapting?

Answer 8

Encapsulated, slow adapting fibers for joint position

Question 9

What is the function of Neuromuscular spindles? Encapsulated? Fast or slow adapting?

Answer 9

Encapsulated, slow adapting fibers for limb muscle, strength/length

Question 10

What is the function of Golgi Tendon Organs? Encapsulated? Fast or slow adapting?

Answer 10

Encapsulated, slow adapting fibers for muscle tension

Question 11

List the fast adapting fibers

Answer 11

Hair follicles

Meissner corpuscle

Pacinian corpuscle