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Created by
rania bi
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Cards (4)
What is the pupil reflex?
a
response
to
changes
in
light intensity
Protects eye from
excessive light exposure, retina
can be
damaged
When theres bright light, circular muscles
contract
, radial muscles
relax
what’s
the pathway for a pupil reflex?
stimulus (
change
in
light
intensity)
> receptors (in
retina
) >
sensory
neuron (in
optic
nerve
) >
Brain
>
motor
neurone >
effector
(
iris
muscles)
defn of
focusing
is the
adjustment
of
lens
of the eye so that
clear
images
of objects at
different distances
are
formed
on the
retina.
