Urgent Biology Unit 1 helpWatch
Receptor - Sensory neurone - Relay neurone - Motor neurone - Response
But where are they synapses.
Also, where does the CNS fit in
And what is the pathway for a non reflex action.
At GCSE you only need to know reflex arcs, synaptic gaps are between each nerve cell and it allows for the electrical impulse to be passed along. There are two parts to the nervous system, the CNS and the PNS the CNS consists of the brain and spinal cord and processes the information it recieves from the environmental stimulus, it goes to the relay neuron which then sends the message to the motor neuron