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Neuro 600 > Somatic Sensory Receptors > Flashcards

Somatic Sensory Receptors Flashcards

1
Q

What do Meissner corpuscles sense?

A

Touch, pressure, and slow vibrations

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2
Q

Are Meissner corpuscles free nerve endings or encapsulated?

A

encapsulated dendrites in dermal papillae of hairless skin.

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3
Q

What do hair root plexuses sense?

A

touch.

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4
Q

Are hair root plexuses free nerve endings or encapsulated?

A

free nerve endings wrapped around hair follicles

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5
Q

Are hair root plexuses fast or slow adapting?

A

Hair route plexuses are fast adapting.

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6
Q

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

A

touch and pressure.

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7
Q

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

A

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

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8
Q

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

A

slow adapting.

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9
Q

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

A

slow adapting.

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10
Q

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

A

the stretching of skin.

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11
Q

Are Ruffini corpuscles (AKA type two

cutaneous mechanoreceptors ) encapsulated or free nerve endings?

A

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

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12
Q

Are Pacinian corpuscles fast or slow adapting?

A

fast adapting.

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13
Q

What do Pacinian or lamellated corpuscles sense?

A

pressure and fast vibrations.

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14
Q

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

A

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

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15
Q

Are Meissner corpuscles fast or slow adapting?

A

Fast adapting

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16
Q

Are itch and tickle receptors free nerve endings or encapsulated?

A

free nerve endings in skin and mucous membranes.

17
Q

What do itch and tickle receptors sense?

A

Itch and tickle receptors since itching and tickling.

18
Q

Are itch and tickle this receptors slow or fast adapting?

A

both slow and fast adapting.

19
Q

Are warm and cold receptors fast or slow adapting?

A

initially fast adapting and then slow adapting.

20
Q

Are warm and cold receptors free nerve endings or encapsulated?

A

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

21
Q

What do warm and cold receptors sense?

A

Warm and cold receptors sense warm temperatures in cold temperatures?

22
Q

What are pain receptors called?

A

nociceptors.

23
Q

Are nociceptors free nerve endings or encapsulated?

A

free nerve endings

24
Q

Are nociceptors slow or fast adapting?

A

slow adapting.

25
Q

Name the three types of proprioceptors?

A

Muscle spindles, tendon organs, and joint kinesthetic receptors.

26
Q

What do muscle spindles sense?

A

muscle length.

27
Q

Are muscle spindles slow or fast adapting?

A

slow adapting.

28
Q

Are muscle spindles encapsulated or free nerve endings?

A

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

29
Q

Are tendon organs slow or fast adapting?

A

slow adapting.

30
Q

Are tendon organs free nerve endings or encapsulated?

A

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

31
Q

What do tendon organs sense?

A

muscle tension.

32
Q

What are joint kinesthetic receptors?

A

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

Neuro 600 (1 decks)

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