Chapter 41 Vocab Flashcards Preview

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Flashcards in Chapter 41 Vocab Deck (28)
1

Acute Mountain Sickness

s/s that may occur when a person ascends to 2000m too rapidly

2

Arterial gas embolism

condition caused by ascent barotraumas in which blood vessels are occluded by air bubbles

3

Barotrauma

diving injuries that occur when air pressure in the hollow spaces of the body (sinuses) increases

4

Boyle's law

states that at a constant temp., gas varies inversely with its pressure

5

Charles' law

a law of physics that states all gases will expand equally when heated and contract when cooled

6

Conduction

heat loss through direct contact with a cooler object

7

Convection

heat lost to air molecules that are passed across the skin from a moving current

8

Dalton's law

law that states that the total pressure of a gaseous mixture is equal to the sum of the partial pressures of each gas in it

9

Decompression sickness

condition that occurs as nitrogen gas bubbles are produced and accumulated in the blood and tissues as a result of rapid ascent during a dive

10

Drowning

suffocation from submersion in a liquid medium

11

Dysbarism

medical condition resulting from changes in atmospheric pressure, IE, high altitude or diving

12

Evaporation

liquid turning to vapor; perspiration evaporating and carrying away heat from skin

13

Exertional heatstroke

environmental emergency that occurs in individuals who are exercising or working in a hot environment in which the core temp. rapidly rises

14

Heat cramps

least severe heat emergency, muscles cramps from overexertion and dehydration

15

Heat exhaustion

moderate heat emergency, includes inadequate perfusion, creating mild state of shock

16

Heatstroke

severe heat emergency, when body's thermoregulators cease to work

17

Henry's law

law that states that solubility of a gas in a liquid is proportional at a particular temp. to the pressure of that gas above the liquid

18

High altitude cerebral edema

swelling in the brain tissue in response to a high altitude environment, leading to ICP

19

High altitude pulmonary edmea

increase in lung interstitial fluid that occurs at altitudes of 2500m or higher

20

Nitrogen narcosis

diving emergency in which a state of stupor results from nitrogen's effect on cerebral function

21

Radiation

heat transfer from the body into still air

22

Thermal gradient

the difference between body and environmental temps

23

Thermogenesis

process of generating heat

24

Thermolysis

process of transferring heat from the body to the environment

25

Thermoreceptors

sensory nerve endings that monitor temperature within the body

26

Thermoregulation

process by which the body adjusts its core temp to maintain it within normal range

27

Type 1 decompression sickness

mild illness resulting from rapid ascent from a dive

28

Type 2 decompression sickness

serious condition resulting from rapid ascent from a dive that produces s/s of the respiratory, circulatory, and nervous systems