Biopsychology- neurons and synaptic transmission

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  • Created by: EliseCeri
  • Created on: 26-04-16 11:51
What are the three types of neurons?
Sensory, relay and motor
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What is the sensory neuron?
they carry messages along the pns to the cns. They have long dendrites and short axels.
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what is the relay neuron?
These connect the sensory neuron to the motor and other relay neurons. They have short dendrites and short axels.
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What is the motor neuron?
The connect the CNS to effectors such as muscles and glands. They have short dentrites and long axels
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what is the axon covered in?
myelin sheath
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what is the myelin sheath seperated by?
Nodes of ranvier
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what is action potential?
When the neuron becomes positively charged for a second, causing an elecrical impulse thqt travels towards the ennd of a neuron.
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what are neurons separated by?
Synapses
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How are signals within neurons transmitted?
Electrically
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How are signals between neurons transmitted?
Chemically
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What is released when an electrical impulse reaches the end of the neuron?
a neurotransmitter
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where is the neurotransmitter stored?
synaptic vesicles.
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What happens onse the neurotransmitter crosses the synapse?
It is picked up by the postsynaptic receptor site
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Other cards in this set

Card 2

Front

What is the sensory neuron?

Back

they carry messages along the pns to the cns. They have long dendrites and short axels.

Card 3

Front

what is the relay neuron?

Back

Preview of the front of card 3

Card 4

Front

What is the motor neuron?

Back

Preview of the front of card 4

Card 5

Front

what is the axon covered in?

Back

Preview of the front of card 5
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