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Transcript
Nerve Impulses ï¬ ï¬ ï¬ The action potential never moves backward because of the refractory period In myelinated fibers, action potentials in the membrane only occur at the nodes of Ranvier; this type of impulse conduction is called saltatory conduction (Figure 13-22) Speed of nerve conduction depends on diameter and on the presence or absence of a myelin sheath Mosby items and derived items © 2013, 2010, 2007, 2003 by Mosby, Inc., an affiliate of Elsevier Inc. 60
