1. How A Nerve Impulse Moves

2. Structure of a neuron

3. 3 types of neurons

4. long dendrit, short axon short dendrite, long or short axon
3 types of neurons
Sensory Neuron
Interneuron
Motor Neuron
Structure
long dendrit, short axon
short dendrite, long or short axon
short dendrite, long axon
Function
conduct impulse to the spinal chord
interconnect a sensory neuron with a motor neuron
conduct impulse to an effector muscle
Location
cell body and dendrite are outside spinal chord
axon runs up spinal chord
entirely within Central Nervous System (brain or spinal chord)
Dendrites and cell body are in spinal chord
axon is outside of spinal chord and runs to the muscle

5. Interesting Facts About Neurons
largest neuron is 30 meters long in a blue whale
giraffe neuron is 5 meters long
human neurons can be up to 2 meters long

7. Four parts to nerve impulse transmission:
1. Depolarization
2. Repolarization
3. Recovery
4. Synaptic Jump

9. Depolarization

10. Repolarization

12. Recovery after the impulse travelled, the neuron needs to reset itself
sodium potassium pump will reverse the sodium and potassium concentrations inside and outside the cell

14. How do the neurons connect the impulse?

15. The Process of Nerve conduction from start to finish...
Draw and label the process from start to finish on your own. Then do a gallery walk to correct each others

16. How an impulse crosses a synapse

19. Play Dough Action
You and a partner will use a white board and playdough to act out an impulse moving along a neuron and across to another.
You need to include:
1. depolarization
2. repolarization
3. recovery
4. outline what three different neurotransmitters do

20. In two teams, you will create a video that shows how a nerve impulse travels from a sensory neuron to interneuron to a motor neuron.
You need to include:
1. Stimulus to sensory neuron
2. Process of Depolarization
2. Process of Repolarization
3. Process of Recovery (just mention Na/K Pump)
4. Ca2+ at synaptic terminal
5. vesicle movement
6. release of neurotransmitter
7. docking of neurotransmitter
8. depolarization of interneuron
9. movement along interneuron
10. synaptic to motor neuron
11. depolarization of motor neuron
12. movement of muscle