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biology paper 2🩷
homeostasis paper2🩷
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Cards (8)
Receptor cells


Cells that detect a
stimulus
(changes in the
environment
)
Receptor
cells in the skin detect changes in
touch
, pressure,
pain
and temperature
Light sensitive cells in the
retina
of the eye detect changes in
light
and
colour
Receptor
cells
in the nose detect
chemicals
in the air
Receptor cells in the
tongue
detect
chemicals
in
food
Receptor cells in the
inner
ear detect changes in
sound
Receptor cells are in the skin,
nose
,
tongue
, inner ear, and retina
Coordination
centres

Brain
Spinal cord
Pancreas
Brain


Coordinates information from the
receptor cells
and sends signals to the
muscles
and glands
Spinal cord


Coordinates messages from the
brain
and receptor cells and coordinates
reflexes
Pancreas


Coordinates the
glucose
levels in the blood
Effectors


Muscles or glands in the body that produce a response to restore
optimum
levels in the body
Effectors


A muscle
contracting
to lift a leg
A gland
releasing
a hormone into the blood