How Nerve Cells Work

Home How Nerve Cells Work

Module Overview

Originated by Professor. Miroslava Korenova

The human body is made up of trillions of cells. Cells of the nervous system, called nerve cells or neurons, are specialized to carry “messages” through an electrochemical process. The human brain has approximately 86 billion neurons. To learn how neurons carry messages, read about the action potential.

Neurons come in many different shapes and sizes. Some of the smallest neurons have cell bodies that are only 4 microns wide. Some of the biggest neurons have cell bodies that are 100 microns wide. (Remember that 1 micron is equal to one thousandth of a millimeter!).

In this module, we will look at how neurons are surrounded by cells and have a nucleus, which contains genes.

We will explore

  • Synapses
  • ‘Neurotransmitters’
  • Dendrites
  • Axons

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This module includes

  • Lesson activity plan
  • Observational worksheet
  • Reflection worksheet
  • Power point

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