TC 3-04.93 Flashcards
What physiologic factor contributes most often to aircraft mishaps?
Spatial disorientation
What four subjects are the minimum aeromedical annual training requirements?
Altitude physiology, spatial disorientation, aviation protective equipment, stress fatigue and exogenous factors
In order from closest to furthest what are the layers of the Atmosphere?
Troposphere
stratosphere
mesosphere
thermosphere
What is Dalton’s law of partial pressure?
The total pressure exerted by a mixture of gases is equal to the sum of pressures contributed by each gas in the mixture
What are the physiological zones of the atmosphere?
Three
The efficient zone (physiological zone)
-sea lvl- 10,000’
Deficient zone
-10,000’-50,000’
the space equivalent zone
-50,000’-♾Without use of supplemental oxygen a decrease in night vision capabilities occurs at what altitude
4000 feet PA
What type of tissue is blood considered to be?
Connective tissue
What is the purpose of plasma in blood?
To transport nutrients such as glucose and waste products
Define respiration
The physical and chemical process of an organism by which oxygen is transported to tissues and cells and waste products like CO2 and water are given off
What chemical in the body is used to maintain the acid base balance?
CO2
Exhaling warm moist air aids in what process?
Maintaining body temperature
Tiny air sacs in the lungs where gas exchange takes place is called what?
Alveoli
Define hypoxia
State of O2 deficiency in the blood cells and tissues significant enough to cause impairment of function
What are the four major types of hypoxia?
Hypoxic, hypemic, stagnant, and Histotoxic
What are the four stages of hypoxia?
Indifferent, compensatory, disturbance, and critical
What is Boyles law?
At a constant temperature the volume of gas is inversely proportional to the pressure
The ear is an organ of hearing and:
Regulating equilibrium (balance)
Valsalva maneuver should never be attempted when?
During ascent
Define stress
The non-specific response of the body to any demand
What are the different types of stressors?
Psychosocial, environmental, physiological, and cognitive
What are the self-imposed stressors?
Drugs, exhaustion, alcohol, tobacco, hypoglycemia
As a rule what is the minimum hours of sleep per night for continuous operations?
Five hours
What AR provides guidance on crew endurance Planning?
AR 385-10
How long should an individual sleep when recovering from 24 to 48 hours of sleep deprivation?
No longer than 10 hours
What is an objects resistance to change in a state of rest or motion?
Inertial force
What is the force acting on an object moving in a circular pattern that holds the object on it circular path?
Centripetal force
What is an objects speed in a given direction?
Velocity
What is newtons first law?
Inertia. A body remains at rest or in motion unless acted upon by force
What is newtons second law?
To overcome inertia a force is required the result of which is proportionate to the acceleration applied and it’s mass
What is newtons third law?
For every action there’s an equal and opposite reaction
What are the factors affecting accelerative forces?
Intensity, duration, rate of onset, body area and site, and impact direction
What are the aircraft design features that promote crash survival?
(CREEP)
Container, restraint systems, environment, energy absorption, post crash protection
What is the most common cause of intentional and unintentional poisoning in the United States?
Carbon monoxide
Inhaling hydraulic fluid can have affects identical to what?
Military nerve agents known as organophosphates
