Somatosensory System

Question 1

which type of receptor identifies displacement of hair?

Answer 1

hair follicles

Question 2

what types of fiber form free nerve endings?

Answer 2

C or A delta

Question 3

area of skin innervated by a single afferent neuron

Answer 3

receptive field

Question 4

what is a test for touch thresholds?

Answer 4

semmes weinstein monofilament test

Question 5

which type of receptor identifies touch and vibration?

Answer 5

Pacinian corpuscles

Question 6

what 2 types of receptors contribute to our sense of subcutaneous fine touch in large receptive fields?

Answer 6

Pacinian and Ruffini corpuscles

Question 7

these receptors are found around joints, tendons, and muscles; in the periosteum, mammary glands, external genitalia, urinary bladder, pancreas

Answer 7

Pacinian corpuscles

Question 8

these receptors are found in the dermal papillae of hairless skin such as: hands, eyelids, tip of tongue, lips

Answer 8

Meissner’s corpuscles and Merkel’s discs

Question 9

Which afferent axon type is the biggest and fastest?

Answer 9

muscle length/stretch

Question 10

which types of receptor adapt rapidly?

Answer 10

Meissner’s and Pacinian corpuscles

Question 11

which type of receptor is also known as type II cutaneous mechanoreceptors?

Answer 11

Ruffini corpuscles

Question 12

free nerve endings are also known as?

Answer 12

bare dendrites

Question 13

which type of receptor is also known as type I cutaneous mechanoreceptors?

Answer 13

Merkel’s discs

Question 14

which type of receptor adapts slowly?

Answer 14

Merkel’s discs

Question 15

Which afferent axon type is the smallest and slowest?

Answer 15

heat; slow pain

Question 16

these receptors are found deep in the dermis, in ligaments, tendons, hands and soles of feet

Answer 16

Ruffini corpuscles

Question 17

what 3 types of receptors contribute to our sense of superficial, fine touch in close receptive fields?

Answer 17

Meissner’s corpuscles, Merkel’s discs, hair follicles

Question 18

what makes you feel that the muscle is stretching and is past its endpoint?

Answer 18

muscle spindle

Question 19

which type of receptor identifies stretch?

Answer 19

Ruffini corpuscles

Question 20

which type of receptor identifies pressure?

Answer 20

Merkel’s discs

Question 21

which type of receptor identifies light touch and vibration?

Answer 21

Meissner’s corpuscles