Aviation Safety Management 1 - Week 2 Flashcards
The ability to see,
VISION
a clear ‘window’ at the very front
of the eye.
acts as a fixed focusing device.
CORNEA
controls the amount of light that is
allowed to enter the eye.
IRIS AND PUPIL
Its shape is changed by the
muscles (ciliary muscles)
surrounding it which results in
the final focusing adjustment to
place a sharp image onto the
retina.
LENS
The change of shape of the lens is
called ______________
accommodation.
located on the rear wall of the
eyeball
RETINA
Two types of light sensitive cells
that are found in the retina;
rods and
cones.
function in good light, are
capable of detecting fine detail, and
are color sensitive
Cones
cannot detect color. They are
poor at distinguishing fine detail, but
good at detecting movement in the
edge of the visual field
Rods
FACTORS AFFECTING CLARITY OF SIGHT
- Physical imperfections
- ingested foreign substances
- Environmental factors
occurs at the point where the optic
nerve enters the retina (between the rods &
cones).
Blind spots
is caused by
a shorter-than-normal
eyeball which means
that the image is formed
behind the retina .
Hyperopia
is
where the eyeball is
longer than normal,
causing the image to be
formed in front of
the retina
Myopia
VISUAL PROBLEMS
CATARACTS
ASTIGMATISM
GLAUCOMA
MIGRAINE
clouding of the lens usually associated with
aging
Cataracts
misshapen cornea
causing objects to
appear irregularly
shaped.
Astigmatism
buildup in pressure of the fluid within the eye which
can cause damage to the optic nerve and even blindness.
Glaucoma
Severe headaches
that can cause
visual
disturbances.
Migraine
It is used to detect sounds by
receiving vibrations in the air,
and secondly it is responsible
for balance and sensing
acceleration
HEARING
The _______________part of the ear directs
sounds down the auditory canal,
and on to the eardrum. The
sound waves will cause the
eardrum to vibrate.
outer
transmits vibrations from the eardrum
by way of three small bones known as the Ossicles, to the fluid of the inner ear.
MIDDLE EAR
Any vibrations they detect cause
neural impulses to be transmitted to
the brain via the auditory nerve.
INNER EAR
IMPACT OF NOISE ON PERFORMANCE
- Be annoying
- Interfere with verbal communication
- Cause accidents
- Be fatigued
- Damage workers’ hearing
process of receiving information
through the senses, analyzing, and
making it meaningful.
INFORMATION PROCESSING
INFORMATION PROCESSING stages
- gather info
- assessment
- evaluation and decision making
- action
- feedback
Ability of the eye to discriminate sharp detail at varying distances
Visual Acuity
What happens to the lens when it focuses on near objects?
Thicken
What happens to the lens when it focuses on far objects?
flatten
How is focus achieved by the COrnea?
bending incoming light rays
Recite Maslow’s Hierarchy of Needs
Physiological Needs
Safety and Security
Love and Belonging
Self-esteem
Self actualization
