What Is Elastin?


Quick Answer

Elastin is an elastic protein that can be found in the connective tissue in the body, including the lungs, ligaments, skin and elastic cartilage. The protein elastin is very flexible and gives internal organs their elasticity.

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Full Answer

One example of elastin at work is the expansion and contraction of the lungs with each breath a person takes. Also when the skin is pinched and let go, it goes back to its original shape as a result of elastin. Elastin is also critical to the linings of veins and arteries within the human body. This protein allows the veins to contract and restrict with the rise and fall of blood pressure.

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