Aeromedical

Question 1

Define spatial disorientation.

Answer 1

Individual’s inability to determine his or her position, attitude, and motion relative to the surface of the earth or significant objects.

Question 2

Define sensory illusion

Answer 2

False perception of reality caused by the conflict of orientation information from one or more mechanisms of equilibrium. Major cause of spatial disorientation.

Question 3

Define vertigo.

Answer 3

Spinning sensation caused by a peripheral vestibular abnormality in the middle ear.

Question 4

Type I SD.

Answer 4

UNRECOGNIZED.

Most dangerous

What you see or think is uncorroborated by other senses. Height-depth perception illusion.

Question 5

Type II SD.

Answer 5

RECOGNIZED

Perceive the problem but fail to recognize it as SD.
Ex: Perceived instrument failure leading to a graveyard spin.

Question 6

Type III SD.

Answer 6

INCAPACITATING

Experience such an overwhelming sensation of movement that you cannot orient yourself by visual cues or aircraft instruments.

Question 7

Four types of hypoxia.

Answer 7

“H3S”

Hypoxic - secondary to insufficient oxygen in the air.

Hypemic - Reduction in the oxygen carrying capacity. Ex. smoking, anemia, CO, hemorrhage.

Histotoxic - Secondary to interference with oxygen use by the body.

Stagnant - Results from INADEQUATE
CIRCULATION of blood, which for aviators is
common in G Forces. Other examples are; Heart
Failure, Arterial Spasms, Vessel Occlusions.