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Constituents of elastic fibers of connective tissue

Specify which substance do the elastic fibers of connective tissue are made up of? State some of the functions of these fibers?

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Elastic fibers are made up of the protein known as “elastin”. Elastic fibers abound in the artery walls, helping the maintenance of arterial blood pressure in these vessels. They are also present within the lungs, giving them some elasticity. Some of the respiratory diseases are caused by the destruction of these fibers. In several other organs and tissues the elastic fibers are found in interstitial matrix.

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