What is created in the body to provide structural support and strength as part of connective tissue?

Collagen is the primary component of connective tissue that provides structural support and strength throughout the body. It is a protein formed by a triple helix structure that assembles into long, fibrous structures, which contribute to the tensile strength and elasticity of various tissues and organs. Collagen fibers are found in numerous places, including cartilage, bone, skin, and tendons, playing a crucial role in maintaining the integrity and function of these tissues.

Elastin is another connective tissue protein that provides elasticity, allowing tissues to stretch and recoil, but it does not primarily contribute to structural support in the same way collagen does. Keratin, while important for strength and protection in structures like hair, nails, and the outer layer of skin, is not involved in the supportive structure of connective tissues. Actin is a protein involved in muscle contraction and cellular movement, but it does not serve the purpose of structurally supporting connective tissues.