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Elastic fibers provide tissues with the ability to respond to stretch and distension.
Elastic fibers are typically thinner than collagen fibers and are arranged in a branching pattern to form a three dimensional network.
Elastic fibers are composed of two structural components, elastin and microfibrils.
The random coiling of the elastin molecule gives the elastic fiber its ability to be stretched and then recoil back to its original state. Elastin also uniquely contains desmosine and isodesmosine.
In mature fibers, the microfibrils are located with elastic fiber and at the periphery of the fiber.
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Reticular fibers | | | Fibroblasts and myofibroblasts |