The Nerve Impulse

This tutorial explains that the source of the impulse in a neuron is a rapid change in the polarity of the cell membrane in a restricted area. The direction of the electrical gradient is rapidly reversed and then returns to normal. The change in charge stimulates the process to happen in adjacent parts of the cell and the change in the polarity travels down the neuron.
Resource ID#: 120853 Type: Tutorial
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Direct Link: http://highered.mheducation.com/sites/9834092339/student_view0/chapter44/the_nerve_impulse.html

General Information

Subject(s): Science
Grade Level(s): 9, 10, 11, 12
Intended Audience: Students
Suggested Technology: Computers for Students, Internet Connection, Adobe Flash Player
Keywords: nerve impulse, axon, dendrite, neuron, resting potential, action potential, polarization, depolarization
Instructional Component Type(s): Tutorial
Resource Collection: Science - Biology - Grades 9-12 Existing Student Tutorials

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