Final answer:
Tendons and ligaments are composed of dense connective tissue, mostly collagen fibers, that provide strength and elasticity. Ligaments also contain elastin which allows them to stretch and return to shape. Both are crucial for skeletal stability and mobility.
Step-by-step explanation:
Tendons and ligaments are both made of dense connective tissue primarily comprised of collagen fibers. These fibers are known for their high tensile strength and resistance to stretching, providing structural support and enabling the tissues to return to their original length after being stretched. Ligaments, specifically, also contain the protein elastin, which allows them to be flexible and elastic. These connective tissues play critical roles in the functioning of the skeletal system, with ligaments connecting bones together and tendons connecting muscles to bones.
Ligaments attach one bone to another, supporting and stabilizing joints, whereas tendons attach muscle to bone, allowing for movement. Both are essential for the mobility and stability of the skeletal system, demonstrating great resilience and strength which allow them to withstand a lot of stress during bodily movements.