What is elastin primarily known for in the body?

Elastin is primarily known for creating elastic tissue in the body. It is a key protein in connective tissues and allows tissues to stretch and recoil, which is essential for maintaining the flexibility and resilience of various structures. This property of elastin is particularly important in organs and systems that undergo frequent changes in shape or size, such as the lungs, blood vessels, and skin. The ability to return to its original shape after stretching contributes significantly to overall tissue function and health. By forming elastic fibers, elastin plays a crucial role in ensuring that tissues can accommodate dynamic movements without losing structural integrity.