Flashcards in Modalities Deck (21):
What are 3 chemical mediators following an injury?
Histamine, leucotaxin, necrosin
If energy is not absorbed, it must be transmitted to the deeper tissues is the law of what?
What is central biasing?
Theory of pain modulation where higher centers of the brain influence the perception and response of pain
Effective radiating area
with the use of modalities, some such as ultrasound have a certain area of body tissue where the modality is effective
when cooling a body part, after 15-20 minutes of direct cold contact the body will actually increase temperature
electrical current produced applying pressure to certain crystals such as in ultrasound
What does BNR stand for?
Beam non-uniformity ratio
What is the effective radiating area?
Total area of surface of the ultrasound head that actually produces a sound wave
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
What two chemicals pass between the cell wall?
Sodium and Potassium
Resistance of the tissue of the passage of electrical current is known as what?
Tissues with high impedance are what?
Bone and fat
Tissues with low impedance are what?
Nerve and muscle
____ is heating through direct contact with a hot medium.
What type of massage technique requires a stroking motion?
What is the difference between a cathode and anode?
cathode- negatively charged electrode
-anode- positively charged electrode
What are the non-thermal effects of ultrasound?
increased fibroblastic activity, tissue regeneration, bone healing, pain modulation
What is Wolf’s law?
bone and soft tissue will respond to physical demands placed on them
What are the Cardinal Signs of Inflammation?
redness, swelling, heat, pain, alteration of function
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