Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
sci of modalities
ortho foundations exam 1 material
| Question | Answer |
|---|---|
| types of radiant energy | electromagnetic and acoustic |
| acoustic | ultrasound |
| electromagnetic | e stim, hot and cold |
| *cold by itself doesn't decrease swelling .... | need to add some type of compression |
| velocity = | wavelength x frequency |
| if wavelength goes up, | frequency goes down |
| a higher frequency | doesn't penetrate tissues as deep |
| electromagnetic radiation has constant ____ | velocity |
| modalities with _____ have a greater depth of penetration | longer wavelength |
| longest wavelength and lowest frequency used to stimulate nerve and muscle | ESTIM |
| the resistance the tissue has to the passage of the electromagnetic radiation is responsible for producing the head | shortwave and microwave diathermy |
| as a substance is heated or cooled to a temp different than the surrounding environment, it will emit electromagnetic radiation | infrared |
| light amplified by stimulated emission of radiation | laser |
| laser is within the _____ of the spectrum | within infrared and visible portion of spectrum |
| ultraviolet used to treat | skin conditions |
| ultraviolet has a high | frequency , short wavelength --> ABSORBS SUPERFICIALLY |
| mechanical sound wave, depends on molecular collision in order for it to be transmitted | ultrasound |
| tendons and ligaments are (dense/not as dense) | dense, lots of proteins |
| muscles are (dense/not as dense) | not as dense |
| tissues that are ____ heat up faster | dense |
| some energy is absorbed, changes direction | refraction |
| all energy is absorbed, nothing gets by | absorption |
| energy allowed to pass without any alteration | transmission |
| skin and adipose tissue should _____ in order to get to muscle | transmit |
| UV is ____ by the skin | absorbed, nothing is allowed to penetrate |
| Arndt-shultz principle | there will be no reaction if there is not enough energy absorbed to stimulate the tissue |
| clinical relevance of arndt-shultz principle | so you choose parameters to get desired effect |
| law of grotthus-draper | there is an inverse relationship between energy absorbed and energy allowed to penetrate |
| clinical relevance of grotthus-draper | need to think about depth of tissue, is enough energy getting to target tissue? |
| cosine law | max amount of energy is absorbed/transmitted if energy is at a right angle to the area being radiated |
| ultrasound should be _____to target tissue | parallel |
| inverse square law | intensity of radiant energy will be affected by the distance between energy source and the area being radiated |
| clinical relevance of inverse square law | make sure distance is correct, too close / too far is bad |
Created by:
thomask9
Popular Physical Therapy sets