Multiple Sclerosis
In the pathology of many diseases it can be difficult to explain precisely why a particular condition gives rise to certain symptoms. This interactive exhibit is a simple yet graphic demonstration of how the process of de-myelination of CNS nerve fibres gives rise to significant changes in their function.

The visitor is encouraged to stimulate the dendrites of each nerve by repeatedly pressing on the 'dendrite' buttons until the stimulated nerve is triggered.

The normal cell shows normal saltatory conduction (slowed down for the exhibit). The nerve impulse is conducted rapidly along the axon and repolarisation is fast so the nerve is soon able to be stimulated again.

In contrast, the damaged nerve shows only continuous conduction, which is slow. Repolarisation also takes a great deal longer so the user has to wait longer before the nerve can be stimulated again.

A short voiceover accompanies the exhibit which explains the whole process to the user.

Click on the image on the right to see a full image of this exhibit, it was designed as part of 'A Healing Passion' for the Hunterian Museum in Glasgow and is available for hire or purchase. Styles and materials can be customised.

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