Aeromedical Quiz Flashcards
What is the middle ear?
The area between the ear drum and the inner ear
What FAR prescribes the medical standards and certification procedures for issuing and for
remaining eligible for a medical certificate?
FAR 67, PHAK 17-2
What transmits the motion of the hairs in the inner ear to the brain for interpretation?
The vestibular nerve transmits the motion from the inner ear hairs to the brain
What is spatial disorientation?
Spatial disorientation is the lack of orientation with regard to the position, attitude, or movement of the airplane in space.
What are the 8 illusions in flight.
Inversion
Coriolis
Elevator
False Horizon
Leans
Autokinesis
Graveyard Spin
Graveyard Spiral
What is inversion?
An abrupt change from climb to straight-and-level flight can create a feeling of tumbling backwards
What is Coriolis?
after being in a turn for a while (enough for the fluid in the ears to resettle), the movement of the head in a different plane (while still in the turn) creates the illusion of turning or accelerating on an entirely different axis
What is Elevator?
An abrupt vertical acceleration (like in an updraft) can create the feeling of being in a climb
What is false horizon?
Any sort of sloping cloud formation, an obscured horizon, a dark scene spread with ground lights and stars, and certain geometric patterns of ground lights can distract the pilot from aligning with the actual horizon
What is the Leans?
a sudden return to level flights following a gradual and prolonged turn that went unnoticed by the pilot
What is Autokinesis?
When flying in the dark, a stationary light may appear to move if it is stared at for a prolonged amount of time. A pilot may attempt to align the aircraft with this moving light causing a loss of aircraft control
What is a graveyard spin?
During recovery from a spin after the ear fluid has set, the pilot may feel they are now spinning in the opposite direction. Trying to recover from this new “spin” motion, they inadvertently go back into the direction of the original spin but never actually have recovered from the spin.
What is a graveyard spiral?
Similar to a graveyard spin, a prolonged, coordinated, constant rate turn may create the illusion of not turning. While recovering to level flight, the pilot will then experience the sensation of turning in the opposite direction. This then causes the pilot to return the aircraft to the original turn
Describe what the cones in the eye do
Distinguish color and distant items
Describe what the rods in the eye do.
Detect objects in the shades of gray or peripheral items
