verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style

What are the different types of collagen and their functions?

More than 28 types of collagen have been identified, each serving specialized structural roles. Type I provides strength to skin, bone, tendons, and ligaments; type II supports cartilage and joints; type III strengthens skin, blood vessels, and organs; type IV forms basement membranes; and type V helps organize collagen fibers in connective tissues such as the cornea and placenta.