Phys agents Pain theories/receptors/Laws Flashcards Preview

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Flashcards in Phys agents Pain theories/receptors/Laws Deck (20):
1

Specificity theory

Specific pain is based on specific nerve endings
Specific pain fibers are responsible for pain
They will always transmit the same pain

2

Pattern theory

Pain is caused by the intensity and frequency of a stimulation of a nerve which creates a specific Patten perceived as pain

3

Gate Control Theory

Nerve fibers converge on T-cells which causes a "gate" system opening certain pathways.

4

What will send inhibitory signals in the spinal gate theory

Substantial gelatinosa

5

How do physical agents activate spinal gate theory

Activates nonnociceptor sensory afferents which will Inuit the T cell from activating the spinal cord

6

What is peripheral pain modulation

There are opioid receptors located in the peripheral nerve.
Non-thermal Physical gents can be used to stimulate them

7

What modality would best stimulate the peripheral pain modulation

Short rate TENS (Activates Opiods)

8

What modality best activates the spinal gate theory

Conventional tens

9

What are muscle spindles

Sensory Neurons that lie parallel to muscle fibers. They will respond to stretching of the muscle

10

What neuron will the muscle spindle send impulses to

Alpha motor neuron
Type one a

11

What are Golgi tendon organs

Sensory receptors located in the connective tissue between the muscle and tendon.

12

What is GTO major function

Protects the muscle from over stretching

13

Ruffin receptors

Respond to pressure, are slowly adaptive

14

Pacinian receptors

Sense vibrations in the skin
Are quickly adaptive

15

Meissners receptors

Touch receptors
Quickly adaptive

16

Merkles receptors

Touch receptor
Slowly adaptive

17

Arndt-Shultz principle

Energy absorbed must be sufficient to stimulate the absorbing tissue.
Ex) enough heat to create tissue elongation

18

Growths-Draper Law

If energy is not absorbed superficially it will penetrate deeper tissue.
Ex) 1 Hz will penetrate the deeper tissue bypassing superficial tissue

19

Cosine Law

Maximum absorption happens when the source is placed at right angles to absorbing surface

20

Bunsen Roscoe Law of reciprocity

The time and intensity of a treatment are inversely related
Ex) With a higher intensity you will need less time with the modality