HISTOLOGY
INTEGUMENTARY SYSTEM SKIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Elastin
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Keratin
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Collagen
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M
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Detailed explanation-1: -Elastin is a critical skin protein consisting of crosslinked tropoelastin. Elastin combines with microfibrils to form elastic fibers that provide stretch and recoil to the skin.
Detailed explanation-2: -What is elastin? A highly elastic protein in the extracellular matrix of the skin, elastin allows the skin to retain its firmness and return to its original position after it’s stretched. It also helps hair follicles stay anchored and imparts integrity to the hair-allowing it to remain flexible and avoid breakage.
Detailed explanation-3: -Elastin molecules are joined via lysyl oxidase cross linking. Each molecule can expand and contract as a random coil thereby the entire elastin molecule can then stretch and recoil as one entity.