PTRS 852: Somatosensory Flashcards

1
Q

Where are sensory receptors located on neurons?

A

Distal end

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2
Q

Term: Mechanoreceptor

A

Respond to mechanical deformation by touch, pressure, stretch or vibration

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3
Q

Term: Chemoreceptor

A

Respond to substances released by cells

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4
Q

Term: Thermoreceptor

A

Respond to heat or cold

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5
Q

Term: Nociceptor

A

A receptor sensitive to stimuli that may result in danger resulting in pain sensation

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6
Q

T/F: Receptive fields are smaller distally on the body.

A

True

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7
Q

Receptor: Muscle spindle (Ia)

A

Proprioceptive receptor sensitive to muscle stretch

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8
Q

Receptor: Golgi tendon (Ib)

A

Proprioceptive receptor sensitive to tendon tension

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9
Q

Receptor: Ligament receptors (Ib)

A

Proprioceptive receptor sensitive to ligament tension

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10
Q

Receptor: Muscle spindles (II)

A

Proprioceptive receptor sensitive to muscle tension

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11
Q

Receptor: Paciniform & Ruffini type (II)

A

Proprioceptive receptor sensitive to joint mov’t

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12
Q

Receptors: Meissner’s & Pacinian (A beta)

A

Cutaneous receptors sensitive to touch and vibration

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13
Q

Receptor: Ruffini’s (A beta)

A

Cutaneous receptor sensitive to skin stretch

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14
Q

Receptor: Merkel’s & Hair follicles (A beta)

A

Cutaneous receptors sensitive to pressure

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15
Q

Receptor: Free Nerve Ending (A delta)

A

Pain/Temp receptor sensitive to tissue damage/temp/coarse touch

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16
Q

Receptor: Free Nerve Ending (C)

A

Pain/Temp receptor sensitive to tissue damage/temp/itch/tickle

17
Q

Muscle Spindles: Ia afferents

A

Respond to quick stretch

18
Q

Muscle Spindles: II afferents

A

Respond to slow stretch