Understanding Thermography Measurements for Body Temperature

Heat is the energy transferred to the molecules causing the temperature rise.

Absolute zero is the temperature of -273.5°C, which is experimentally unattainable.

The kinetic energy of molecules is related to temperature.

<p>The Fahrenheit scale is a temperature scale where water freezes at 32°F and boils at 212°F.</p> Signup and view all the answers

<p>The Celsius scale, also known as the centigrade scale, is the most common temperature scale.</p> Signup and view all the answers

<p>The temperature of a gas can be increased by increasing the average kinetic energy of its molecules.</p> Signup and view all the answers

<p>The study of low temperature effects in biology and medicine.</p> Signup and view all the answers

<p>The long-term preservation of blood, sperm, bone marrow, and tissues using low temperatures.</p> Signup and view all the answers

<p>By vibrating tissues and producing heating.</p> Signup and view all the answers

<p>Because cells survive better at the temperature of liquid nitrogen.</p> Signup and view all the answers

<p>Destroying cells in the treatment of Parkinson's disease, tumors, warts, and in eye surgery.</p> Signup and view all the answers

<p>Due to their large physical dimensions and the difficulty in adding and removing protective agents.</p> Signup and view all the answers

<p>To control the volume of destroyed tissue.</p> Signup and view all the answers

<p>Because the cooling rate during freezing affects cells' survival more than the warming rate during thawing.</p> Signup and view all the answers

<p>Little bleeding, controlled tissue volume destruction, and minimal pain sensation.</p> Signup and view all the answers

<p>Because bones absorb ultrasound energy more effectively than soft tissue.</p> Signup and view all the answers

<p>100 °C</p> Signup and view all the answers

<p>373.15 K</p> Signup and view all the answers

<p>70 K</p> Signup and view all the answers

<p>T(K) = T(°C) + 273.15</p> Signup and view all the answers

<p>T(°F) = 1.8T(°C) + 32</p> Signup and view all the answers

<p>Glass fever thermometer</p> Signup and view all the answers

<p>Different materials expand differently with temperature</p> Signup and view all the answers

<p>Electrical resistance</p> Signup and view all the answers

<p>-190 to 300 °C</p> Signup and view all the answers

<p>Infrared thermometer</p> Signup and view all the answers

<p>Detector</p> Signup and view all the answers

<p>0 K is equal to -273.15 °C</p> Signup and view all the answers

<p>Blood flow near the skin</p> Signup and view all the answers

<p>To detect breast cancer</p> Signup and view all the answers

<p>W = eσT^4</p> Signup and view all the answers

<p>0.05W cm^2</p> Signup and view all the answers

<p>Increase in metabolism resulting in vasodilation and increase in blood flow</p> Signup and view all the answers

<p>Conductive heating, infrared radiant heating, radio wave heating, microwave diathermy, ultrasonic wave heating</p> Signup and view all the answers

<p>800-4000 nm</p> Signup and view all the answers

<p>Arthritis, neuritis, sprains, strains, contusions, sinusitis, back pain</p> Signup and view all the answers

<p>Radar range (wavelength = 12cm)</p> Signup and view all the answers

<p>Treatment of fractures, sprains and strains, bursitis, injuries to tendons</p> Signup and view all the answers

<p>Electrodes energized by high-frequency voltage, magnetic induction</p> Signup and view all the answers

<p>~1MHz</p> Signup and view all the answers