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Flashcards in Modalities Deck (21):
1

What are 3 chemical mediators following an injury?

Histamine, leucotaxin, necrosin

2

If energy is not absorbed, it must be transmitted to the deeper tissues is the law of what?

Grotthus Draper

3

What is central biasing?

Theory of pain modulation where higher centers of the brain influence the perception and response of pain

4

Effective radiating area

with the use of modalities, some such as ultrasound have a certain area of body tissue where the modality is effective

5

Hunting response

when cooling a body part, after 15-20 minutes of direct cold contact the body will actually increase temperature

6

Piezoelectric effect

electrical current produced applying pressure to certain crystals such as in ultrasound

7

What does BNR stand for?

Beam non-uniformity ratio

8

What is the effective radiating area?

Total area of surface of the ultrasound head that actually produces a sound wave

9

No change can occur in the tissue can occur in the tissue unless energy absorbed is enough to stimulate the tissue, is known as what?

Arndt Shultz principle

10

What two chemicals pass between the cell wall?

Sodium and Potassium

11

Resistance of the tissue of the passage of electrical current is known as what?

Impedance

12

Tissues with high impedance are what?

Bone and fat

13

Tissues with low impedance are what?

Nerve and muscle

14

____ is heating through direct contact with a hot medium.

conduction

15

What type of massage technique requires a stroking motion?

Effleurage

16

What is the difference between a cathode and anode?

cathode- negatively charged electrode
-anode- positively charged electrode

17

What are the non-thermal effects of ultrasound?

increased fibroblastic activity, tissue regeneration, bone healing, pain modulation

18

What is Wolf’s law?

bone and soft tissue will respond to physical demands placed on them

19

What are the Cardinal Signs of Inflammation?

redness, swelling, heat, pain, alteration of function

20

What are the phases of healing and how long do they last?

-inflammatory response/3-4 days
-fibroblastic repair/ 3-6 weeks
-Maturation remodeling/ up to 2yrs

21

what is the piezoelectric effect

electrical current produced by expanding and compressing certain synthetic crystals creating sound waves