1. Neurons Parts of a Neuron Dendrite Axon Myelin sheath
Multiple sclerosis
Terminal branches
Cell body

2. Neurons

3. Neurons

4. Neurons

5. Neurons

6. Neurons

7. Neurons

8. Neurons

9. Neurons Speed of a neuron impulse Range from 2 to 200 MPH
Measured in milliseconds
(thousandths of a second)

10. Neurons Firing of a neuron Resting potential Selectively permeable
Action potential
Ions
Positively versus negatively charged
Resting potential
Selectively permeable

11. Neurons Firing of a neuron Depolarize Refractory period
Excitatory versus inhibitory
Threshold
All or none response

12. Action Potential

13. Action Potential

14. Action Potential

15. Action Potential

16. Action Potential

17. How Neurons Communicate
Synapse
Synaptic gap (synaptic cleft)
Neurotransmitters
Reuptake

18. How Neurons Communicate

19. How Neurons Communicate

20. How Neurons Communicate

21. How Neurons Communicate

22. How Neurons Communicate