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Biopsychology
Neurons
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Created by
chloe denton
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Cards (13)
Cell body
Dendrites
Axon
Sensory
neurons
Carry
electrical
impulses towards the
brain
Found in the
PNS
Sensory neurons
Have long
dendrites
Have short
axon
Relay
neurons
Have
cell body
Carry
signals
Allow
sensory
and
motor
neurons to communicate
Relay neurons are only found in the
brain
/
visual
system/spinal cord
Relay neurons
Have short
dendrites
Have short
axons
Do not have a
myelin sheath
Motor neurons
Carry
Motor
commands FROM the
CNS
to EFFECTORS (skeletal muscles/organs/gland) which allows for movement
Motor neurons
Have short
dendrites
and long
axons
(for sending messages)
Cell bodies are in the
CNS
Have long axons that also connect to the
PNS
sensory, relay and motor neurons work together
For example, if someone picks up a hot pan and then drops it
SENSORY receptors in the fingers sense the heat and send that information via the peripheral nervous system to the CNS
RELAY
neurons would be involved in analysing the sensation of heat and pain, and are involved in the decision to let go - passing messages to the
MOTOR
neurons which instruct the effectors to let go of the hot pan
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