Chapter 19 Definitions

Question 1

laser

Answer 1

acronym for light amplificaiton by stimulated emission of radiation. A highly organized beam of light

Question 2

monochromatic

Answer 2

light that consists of only one color

Question 3

nanometer

Answer 3

one-billionth (10-9) of a meter

Question 4

macerated

Answer 4

skin that has been softened by soaking in water

Question 5

DNA

Answer 5

deoxyribonucleic acid. Carries genetic information for all organisms execpt RNA

Question 6

melanin

Answer 6

pigmentation of the hair, skin, and eye produceed by melonacytes

Question 7

photon

Answer 7

a unit of light energy that has zero mass, no electrical charge, and an indefinite life span

Question 8

RNA

Answer 8

ribonucleic acid. Controls protein synthesis

Question 9

latent

Answer 9

delayed period between the stimulus and the response

Question 10

rickets

Answer 10

common in children, a vitamin D deficiency that results in inadequate deposition of lime salts, altering the shape, structure, and function of bone

Question 11

ozone

Answer 11

formed by the grouping of three oxygen atoms (O3). Ozone is present in the atmosphere where it filters out ultraviolet light (especially int eh C band), helping to prevent certain forms of cancer

Question 12

psoralen

Answer 12

a group of substances that produce inflammation of the skin when exposed to sunlight or ulta violet light

Question 13

retinoid

Answer 13

topical medication consisting of retinoic acid. Used to treat psoriasis and severe acne.

Question 14

carpal tunnel syndrome

Answer 14

compression of the median nerve that produces pain, numbness, and weakness in the palm and ring and index fingers

Question 15

signlet oxygen

Answer 15

an uncharged form of oxygen that can selectively destroy cells

Question 16

tendinopathy

Answer 16

any disease or trauma involving a muscle’s tendon, tissues surrounding the tendon, or the tendon’s insertion into the bone