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NERVOUS SYSTEM (3 types of neuons (Intereurons (They connect sensory an…
NERVOUS SYSTEM
Neurons
Cells specialised to transmit messages
Parts
Cell body
(nucleus)
Dendrites
(connect with other neurons)
Axon
(passes the informations to the other neuron)
3 types of neuons
Intereurons
They connect sensory an motor neurons
Motor neurons
Carry mesages from central nervous system
Sensory neurons
Carry mesages from receptors
A nerve impulse
A electrical impulse that travels at neuron to neuron
When the message have to be comunicated
The sodium and potasium of the cell changes
The charge of the cell change at positive to negative
This change do that the channels that allow the message open
Synaptic transmision
Nerve impulse arrive to axon
Signal pass to dedrite across synapse
In the other neuron are neurotransimsers
Chemical transmisers