COORDINATION AND RESPONSE IGCSE WGU EXAM 2025 ORGANIZED QUESTIONS,STEP BY STEP EXPLANATIONS AND REVIEW GUIDE AND 100% CORRECT EXPERT VERIFIED ANSWERS GRADED A+ (BRAND NEW!!!!!!!!!)

COORDINATION AND RESPONSE
IGCSE WGU EXAM 2025 ORGANIZED
QUESTIONS,STEP BY STEP
EXPLANATIONS AND REVIEW GUIDE
AND 100% CORRECT EXPERT
VERIFIED ANSWERS GRADED A+
(BRAND NEW!!!!!!!!!)




Suspensory ligaments - THE CORRECT ANSWER-A series of fibres that
hold the lens of the eye in place


Blind spot - THE CORRECT ANSWER-The one area of the retina where
an image cannot be formed as there are no rods or cones; this is
where the optic nerve leaves the eye


Refraction - THE CORRECT ANSWER-When light is bent. For example
in the human eye at the air/cornea boundary and again at the
lens


Circular muscles - THE CORRECT ANSWER-Muscles found in the iris
that contract in bright light and relax in dim light


Radial muscles - THE CORRECT ANSWER-Muscles found in the iris
that relax in bright light and contract in dim light

, Pupil dilation - THE CORRECT ANSWER-When the pupil of the eye
becomes wider e.g. in response to dim light


Pupil constriction - THE CORRECT ANSWER-When the pupil of the eye
becomes smaller e.g. in response to bright light


Accommodation - THE CORRECT ANSWER-The changes that take
place in the eye which allow us to see objects at different
distances


Stimulus - THE CORRECT ANSWER-A change in an animal's
surroundings


Response - THE CORRECT ANSWER-A reaction to a change in one's
surroundings


Central Nervous System (CNS) - THE CORRECT ANSWER-Consists of
the brain and spinal cord and is linked to sense organs by
nerves


Reflex action - THE CORRECT ANSWER-A rapid automatic (or
involuntary) action in response to a stimulus that is not started
by impulses from the brain


Reflex arc - THE CORRECT ANSWER-The nerve pathway of a reflex e.g.
stimulus > receptor > sensory neurone > CNS > relay neurone
> motor neurone > effector > response