Midterm: Lecture 4

Question 1

Light

Answer 1

defined by wavelength and frequency

Question 2

Wavelength:

Answer 2

the spectrum of visible light is made up of light of many different wavelengths. Measured in nanometers

Question 3

Electromagnetic Radiation

Answer 3

radio waves, microwaves, IR radiation, visible light, UV radiation, X-rays and gamma rays

Question 4

Frequency

Answer 4

inversely related to wavelength

Question 5

Two bands of UV light are commonly used:

Answer 5

UV- A

UV-B

Question 6

Reflection

Answer 6

bouncing back of ray of light from energy source.

Question 7

Refraction:

Answer 7

bending of energy

Question 8

Absorption

Answer 8

take-in light or radiant energy

Question 9

Photoelectric:

Answer 9

Process where light falls onto surface knocks electrons out of surface

Question 10

Photon

Answer 10

photon has zero mass and no charge

Question 11

Full-spectrum light for health

Answer 11

400 to 800 nanometers.

outdoor light around noon

Question 12

Drug responsible for balance of sleep cycle

Answer 12

melatonin- slows aging process, coordinates fertility, allows restful sleeping patterns,

Question 13

Pineal Gland

Answer 13

production of the hormone melatonin

Question 14

UV light treats

Answer 14

treatment for dermatologic conditions such as psoriasis.

Question 15

Safety Considerations

Answer 15

Active TB, photosensitive, fever, acute diabetes

Question 16

LASER

Answer 16

Light Amplification by the Stimulated Emission of Radiation

Use laser for healing, acute/ chronic pain

Question 17

Contraindications for laser:

Answer 17

Therapist wears googles

Protocols are joules per cm

Question 18

Far Infrared Saunas

Answer 18

electromagnetic spectrum is divided into three segments by wavelength measured

Question 19

What is SAD?

Answer 19

Seasonal Affective Disorder. SAD are depression, anxiety, extreme fatigue, hypersomnia, carbohydrate cravings, and weight gain.