Somatic Sensory Receptors

Question 1

What do Meissner corpuscles sense?

Answer 1

Touch, pressure, and slow vibrations

Question 2

Are Meissner corpuscles free nerve endings or encapsulated?

Answer 2

encapsulated dendrites in dermal papillae of hairless skin.

Question 3

What do hair root plexuses sense?

Answer 3

touch.

Question 4

Are hair root plexuses free nerve endings or encapsulated?

Answer 4

free nerve endings wrapped around hair follicles

Question 5

Are hair root plexuses fast or slow adapting?

Answer 5

Hair route plexuses are fast adapting.

Question 6

What do Merkel discs (aka- tactile type one cutaneous Mechanoreceptors receptors sense?

Answer 6

touch and pressure.

Question 7

Are Merkel discs (a.k.a. tactile type one cutaneous mechanoreceptors) encapsulated or free nerve endings?

Answer 7

saucer shaped free nerve endings that make contact with Merkel cells in the epidermis.

Question 8

Merkel discs (a.k.a. tactile type one cutaneous mechanoreceptors) slow or fast adapting?

Answer 8

slow adapting.

Question 9

Are Ruffini corpuscles (a.k.a. type two cutaneous mechanoreceptors) slow or fast adapting?

Answer 9

slow adapting.

Question 10

What do Ruffini corpuscles (a.k.a. type two cutaneous mechanoreceptors sense?

Answer 10

the stretching of skin.

Question 11

Are Ruffini corpuscles (AKA type two

cutaneous mechanoreceptors ) encapsulated or free nerve endings?

Answer 11

elongated capsules that surround the dendrites deep in the dermis, ligaments and tendons.

Question 12

Are Pacinian corpuscles fast or slow adapting?

Answer 12

fast adapting.

Question 13

What do Pacinian or lamellated corpuscles sense?

Answer 13

pressure and fast vibrations.

Question 14

Are Pacinian corpuscles or lamellated corpuscles encapsulated or free nerve endings?

Answer 14

oval layered capsules that surround dendrites present in dermis, subcutaneous layers, submucosal tissues, joints, periosteum and some viscera.

Question 15

Are Meissner corpuscles fast or slow adapting?

Answer 15

Fast adapting

Question 16

Are itch and tickle receptors free nerve endings or encapsulated?

Answer 16

free nerve endings in skin and mucous membranes.

Question 17

What do itch and tickle receptors sense?

Answer 17

Itch and tickle receptors since itching and tickling.

Question 18

Are itch and tickle this receptors slow or fast adapting?

Answer 18

both slow and fast adapting.

Question 19

Are warm and cold receptors fast or slow adapting?

Answer 19

initially fast adapting and then slow adapting.

Question 20

Are warm and cold receptors free nerve endings or encapsulated?

Answer 20

free nerve endings in the skin and mucous membranes of the mouth vagina and anus.

Question 21

What do warm and cold receptors sense?

Answer 21

Warm and cold receptors sense warm temperatures in cold temperatures?

Question 22

What are pain receptors called?

Answer 22

nociceptors.

Question 23

Are nociceptors free nerve endings or encapsulated?

Answer 23

free nerve endings

Question 24

Are nociceptors slow or fast adapting?

Answer 24

slow adapting.

Question 25

Name the three types of proprioceptors?

Answer 25

Muscle spindles, tendon organs, and joint kinesthetic receptors.

Question 26

What do muscle spindles sense?

Answer 26

muscle length.

Question 27

Are muscle spindles slow or fast adapting?

Answer 27

slow adapting.

Question 28

Are muscle spindles encapsulated or free nerve endings?

Answer 28

Muscle spindles are sensory nerve endings that wrap around areas of encapsulated intrafusal muscle fibers within most skeletal muscles.

Question 29

Are tendon organs slow or fast adapting?

Answer 29

slow adapting.

Question 30

Are tendon organs free nerve endings or encapsulated?

Answer 30

enclosed capsules within collagen fibers at the junction of tendon and muscle.

Question 31

What do tendon organs sense?

Answer 31

muscle tension.

Question 32

What are joint kinesthetic receptors?

Answer 32

Pacinian corpuscles, Ruffni corpuscles, tendon organs, and free nerve endings. They are all proprioceptors.