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Activity (Hands-On)Grades 5 - 7

Building the Neuron

A magnified image shows multiple neurons from a rat's brain. In the center are distinct neurons with visible dendrites and axons.Neurons from a rat's cortex.

What does the brain look like? As engineers, how can we look at neural networks without invasive surgery? In this activity, students design and build neuron models based on observations made while viewing neurons through a microscope. The models are used to explain how each structure of the neuron contributes to the overall function. Students share their models with younger students and explain what a neuron is, its function, and how engineers use their understanding of the neuron to make devices to activate neurons.

Biomedical engineers often create models to describe and illustrate what cannot be easily seen, such as neural networks in the brain. Biomedical engineers who develop neural devices design and build models and prototypes to help explain how devices are able to carry out the function of the neuron. Additionally, models are used for preliminary testing, prior to testing on live specimens.

After this activity, students should be able to:

  • Design and build a model of a neuron.
  • Explain the structures of a neuron and how each structure contributes to the overall function of neuron.
  • List reasons why engineers use models to explain natural phenomenon.

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