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Fig. 4‐2, p. 89 Fig. 4‐3, p. 90
• The voltage change across the membrane gets
smaller with distance from the initiation zone. Action Potential Propagation (cont’d)
• The spread of excitability in a neuron
is directional Fig. 4‐8, p. 95 Fig. 4‐9a, p. 97 Action Potential Propagation (cont’d)
Contiguous Conduction Fig. 4‐9, p. 97 Action Potential Propagation (cont’d)
Saltatory Conduction & Myelination
• Composed of lipids
• Two types of glia
• Schwann – PNS
• Oligodendrocytes - CNS
• Nodes of Ranvier
• Gaps between myelin
segments Fig. 4-12, p. 100 Action Potential Propagation (cont’d)
Saltatory Conduction & Myelination Fig. 4-13, p. 101...
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This note was uploaded on 09/28/2012 for the course NPB 101 taught by Professor Fuller,charles/goldberg,jack during the Spring '08 term at UC Davis.
- Spring '08