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What are the 3 types of neurones
Sensory
Relay
Motor
What does a sensory neurone do
Carries info from peripheral NS to CNS
What does relay neurone do
Carries electrical impulse from CNS to Motor neurone
What does the motor neurone do
Carries electrical impulse from CNS to effector
What are the 4 parts of a sensory neuron
My line sheith
Cell body
Axon
Axon terminal
What are the 4 parts of a relay neurone
Dendrite
Cell body
Axon
Acon terminal
What are the 5 parts of a motor neurone
Cell body
Dendrite
Axon
Mylien Sheath
Axon terminal
What is a dendrite
At the end of neurones and receives signals
What is a cell body
Control centre of a neurone
What is a mylien sheath
Insulating layer around the axon
What does an axon do
Take electrical impulse away from cell body
What does an axon terminal do
Used to make synaptic contact with other neurons or effector cells
What is an excitatory neurotransmitter
Makes the post synaptic receptor more likely to fire off a neurotransmitter
What is a inibitatory neurotransmitter
Hinders the neurones likely of firing off a electrical impulse
What is the process of synaptic transmission
Electrical impulse travels down the pre synaptic neurone axon terminal until it reaches the vesicles
The synaptic vesicles empty the neurotransmitter into the synaptic gap
Where it diffuses across binding to the specialised receptor cells
Then the action potential travels up the post synaptic neurones axon
