| Fractal structures can be found in other physiological systems, including |
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networks in the liver and kidneys |
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sutures in a skull, that of a mule deer is pictured on the right. |
Click the picture for an enlarged version in a new window. |
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| As with the pulmonary and circulatory systems, many of these fractal structures
have evolved to reach a large volume with a small amount of resources. |
| Also, the redundancy of fractal structures make them robust against
injury. For example, the heart can continue to function even after the His-Purkinje system
has suffered considerable damage. |