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Transcript
Slide # 1 Diagram of the Nervous System Slide # 2 Neurons Slide # 3 Axons Thread-like extensions from the cell body Tube-like fibers that carry impulses away from the soma to the dendrites Myelin coating Slide # 4 Multiple Sclerosis MS destroys myelin sheaths of axons This can cause erratic and uncoordinated behavior Slide # 5 Slide # 6 Dendrites Short, thin fibers that stick out from the cell body Dendrites receive impulses or messages from other neurons and send them to the cell body Slide # 7 Characteristics of Neurons They cannot replace themselves Damage is permanent Threshold of excitation Slide # 8 The Neuron Connection Synapse junction Neurotransmitters Open chemical “locks” Inhibition Slide # 9 How a Neuron Fires Slide # 10
