Vocab Flashcards
Habituation
Prolonged stimulation leading to reduced sensory awareness
Adaptation
Sensory response is modified as a result of continuous exposure to a situation
Coriolis Illusion
Disorientation caused by an abrupt head movement at a rate of 3 degrees or more during a prolonged constant rate turn
The leans
Sensation of no longer turning during a prolonged turn
Speed of Accommodation
Diminishes as age increases, especially at night
Presbycusis
Gradual hearing loss beginning in childhood
Graveyard Spiral
Dangerous spiral dive caused by a lack of instrument training
Cones
Located in the center of the retina, and used for day/high intensity light vision.
Rods
Located in periphery of the retina. 10,000 times more sensitive to light
Hypotension
Low blood pressure
Fick’s Law
States that “the rate of gas diffusion through a tissue medium is proportional to the tissue area and the difference between the gas partial pressures on the two sides, and inversely proportional to the tissue thickness”
Dalton’s law
States “the total pressure of the gas mixture is equal to the sum of its partial pressures”
Henry’s Law
States “at equilibrium the amount of gas dissolved in a liquid is proportional to the gas pressure”
Boyle’s Law
States “providing the temperature is constant, the volume of a gas is inversely proportional to its pressure”
Eustachian tubes
Equalizes the pressure in the middle ear; connects ear with the back of the throat
Presbyopia
Diminishing of the elasticity of the eye due to aging
Endolymph
Fluid contained within the cochlea
Glaucoma
Group of eye conditions that lead to damage of the optic nerve
Somatogyral Illusion
The turning sensation experienced when returning to level flight after a prolonged turn
Somatogravic Illusion
The illusion of tumbling backwards after an abrupt change from climbing to level flight
Oculogravic Illusion
The sensation of upwards movement when the plane is accelerating in straight and level flight
Hyperventilation
Increased rate in breathing when it is not necessary
Cornea
Transparent part of the eye where most refraction occurs
Fovea
Region on the retina composed of only cone nerve endings
Retina
Layer of tissue in the eye responsible for converting focused light into signals to the brain
Ischemia
Oxygen starvation, caused by insufficient blood to the heart muscle
Angina Pectoris
Chest pain
Sensori-neural deafness
Permanent damage to the cochlea caused by loud noises
Arrythmia
Erratic Heartbeat
Tympanic membrane
Eardrum
Cochlea
Bone in the ear that contains the endolymph fluid
Conductive Hearing Loss
Damage the middle ear caused by infection or trauma. Most cases can be fixed with surgery.
