Human Performance Flashcards
(24 cards)
Boyles law
Volume x Pressure = constant
Charles’ Law
Volume of gas varies directly with temperature
Dalton’s Law
Partial pressures
Fick’s Law
States that gas will diffuse from areas of high concentration to areas of low concentration
General Gas Law
P1 V1 T2 = P2 V2 T1
Henry’s Law
Amount of gas dissolved in a liquid is proportional to the pressure acting over the liquid
% of oxygen in lungs at sea level
14.5%
Hypoxia reaction threshold
7000 ft
Hypoxia disturbance threshold
10-12,000 ft
Hypoxia critical threshold
22,000 ft
Night vision affected by Hypoxia occurs above X ft
5000
Euphoria due to hypoxia occurs above X ft
10,000
Symptom of hypoxia but not hyper ventilation
Cyanosis (blue tinge)
Early symptom of hyperventilation is…
Dizziness
Histotoxic hypoxia is usually caused by…
Narcotics/drugs
The body can tolerate between X g unaided…
7 and 8g
Cosmic radiation levels must be monitored on flights above an altitude of…
49,000 ft
Ozone is concentrated in the…
Top half of the stratosphere
Total gas volume of the lung is the sum of:
Tidal volume
Inspiratory reserve volume
Expiratory reserve volume
Residual volume
Time of useful consciousness at 40,000 feet after decompression
15-20 seconds
Relative humidity formula
RH = 100 - (5 *spread)
Dry adiabatic lapse rate
-3degC / 1000ft
Standard environment lapse rate
-2degC / 1000ft
Saturated adiabatic lapse rate at mid latitudes
-1.8degC / 1000ft
