Physiiology

Question 1

Atmosphere

Question 2

Troposphere

Question 3

Ionosphere

Question 4

Ionospheres

Question 5

Phyiological zones

Answer 5

Space equivalent zone (50,000 ft)

Deficient zone (10,000 ft to 50,000 ft)

Efficient zone (sea level to 10,000 ft)

Question 6

Composition of air

Answer 6

78% nitrogen

21 oxygen

1% other

.03 co2

Question 7

Atmospheric pressure

Answer 7

The measurement of pressure exerted on the earths surface from gases and water in the atmosphere

Measured in mercury

Question 8

Permenant gases

Answer 8

Nitrogen

Oxygen

Argon

Noble gases

Question 9

Variable gases

Question 10

Significant pressure altitudes

Answer 10

0

18,000. 380 mmgh 1/2

Question 11

Boyles law

Answer 11

The volume of a given gas varies invesrly with its pressure at constant temp

Question 12

Dalton’s law

Answer 12

The total pressure of a gas mixture is the sum of the individual pressure (or partial pressure) of all gases in the mixture

Question 13

Henry’s law

Answer 13

The quantity of gas dissolved in a given volume of liquid is proportional of the partial pressure of the gas in contact with the above liquid.

Question 14

Grahams law

Answer 14

Describes rates of effusion (gas movement through a pin hole) will equalize out

Transfer of gases between atmosphere and lungs

Question 15

Circulatory functions

Question 16

System components of circulatory

Answer 16

Artieris (oxygenated)

Veins (deox)

Capalaries

Question 17

Components of blood

Answer 17

Plasma

White blood cells

Platelets

Red blood cells

Question 18

The red blood cell

Answer 18

Saturation of

Question 19

Respiratory functions

Answer 19

Intake of oxygen

Removal of carb dox

Maintenance of heat balance

Maint of body acid base balance

Question 20

Phases of respiration

Answer 20

Inhalation is active

Exhalation is passive l

Question 21

Gaseous diffusion

Answer 21

Gas molecules of higher pressure move in the direction of gas monc

Question 22

Gas exchange n lungs

Answer 22

Gas exchange between avid abs capillaries.

Question 23

Hypoxia

Answer 23

S l States of oxygen deficiency in the blood cells abs tissues sufficient to cause impairment of function

Question 24

How many types of hypoxia

Answer 24

4

Question 25

What are the 4 types of hypoxia 7?

Answer 25

Hypoxia hypemic Stagnant Historic

Question 26

Hypoxia hypoxia

Question 27

Hyspemic hypoxia

Answer 27

Two - Carbonmonoxide takes up too much room in blood

Question 28

Stagnant hypoxia

Answer 28

Oxygen carrying is good but circulation is not adequate (Pressure points or g forces)

Question 29

Historic hypoxia

Answer 29

Inability

Question 30

Symptoms of hypoxia

Answer 30

Air hunger Apprehension Fatigue Nausea Headache Dizziness Blurred vision Hot and cold flashes Euphoria Belligerence Nu mbness Tingling Denial

Question 31

Signs of hypoxia

Answer 31

Hyperventilation Blueing of lips a finger tips Mental confusion Poor judgment Loss of muscle coordination Unconsciousness Slouching

Question 32

Hypoxia prevention /treatment

Answer 32

Limit time at altitude pressurized cabin Minimize self imposed stressors 100% oxygen Treatment 100% oxygen Descend altitude

Question 33

Army aviation hypoxia prevention (approved oxygen will be used by aircraft crews r occupants for flights as follows

Answer 33

-

Question 34

Stages of hypoxia icdc

Answer 34

'

Question 35

Indifferent stage

Answer 35

Altitudes sea level to 10,000ft Oxygen saturation: 98-90%

Question 36

Compensatory stage

Answer 36

10,000 to 15000 ft Oxygen sat

Question 37

Disturbance stage

Answer 37

15,000 to 20000 Oxygen sat 79,70% Symptoms

Question 38

Critical stage

Answer 38

Altitudes, 20,000 ft above

Question 39

Factors modifying hypoxia symptoms

Answer 39

Pressure altitude Rate of ascent Time at altitude Temp Physical activity Individual factors Physical fitness Self-imposed stressors

Question 40

Time of useful consciousness

Question 41

Hyper ventilation

Question 42

Hyperventilation systems

Question 43

Corrective measures

Question 44

Hyperventilation or hypoxia

Answer 44

I

Question 45

Gas t

Answer 45

Lee

Question 46

Gas expansion

Question 47

Ear abs sinus blocks

Question 48

Treatment of ear abs sinus blocks

Answer 48

On ascent ( rare ) On the

Question 49

Barodontalgia

Answer 49

Tooth pain due to change in barometric pressure

Question 50

Evolved gas disbarsism

Answer 50

-

Question 51

Evolved gas disorders

Answer 51

Decompression sickness Type I - bends - skin manifestations Type ll - chokes - central nervous

Question 52

The bends

Answer 52

When nitrogen gets trapped between joints

Question 53

Skin manifestation

Answer 53

Nitrogen bubbles under the skin

Question 54

The chokes

Answer 54

Nitrogen bubbles block the smaller pulmonary vessels

Question 55

Central nervous system

Answer 55

Nitrogen bubbles are trapped in the brain or against . The nervous system

Question 56

Predisposing factors for Dcs

Answer 56

Rate of ascent Altitude Body fat content Age

Question 57

Dcs prevention

Answer 57

De-nitrogenation Pressurized cabin Limit time at altitude

Question 58

Scuba divers beware

Answer 58

24 hour between flying after diving

Question 59

Dcs treatment

Answer 59

Descend to the ground level 100% oxygen Land at