Nerve Signalling

3. passing the electrical signal from one neuron to another via the synapse
6. fatty substance surrounding peripheral nerve axons which assists nerve conduction
8. type of glial cell, produces myelin around peripheral nerve axons
9. reflexes generated through the spinal cord (without conscious control)
10. gap in myelin sheath to assist rapid signal transmission
12. nerve cell
16. describes the way action potentials jump between nodes of Ranvier
17. reflexes generated through the brain without conscious control

1. chemical signal passed from the end of an axon into the synapse
2. bulb at the end of an axon containing neurotransmitters
4. cell which support neuron(s)
5. change in electrical potential of an axon membrane when a signal is transferred
7. time when axon membrane cannot start another action potential
11. potential of axon membrane when not signalling
13. simple nerve pathway to generate a reflex
14. branches on neuron for receiving information
15. nerve fiber for sending electrical signals