What structure attaches skeletal muscles to bones?

Tendons are the structures that attach skeletal muscles to bones. They play a crucial role in the musculoskeletal system by transmitting the force generated by muscle contraction directly to the bone, allowing for movement of the skeleton. Tendons are composed of dense connective tissue, which provides the necessary strength and flexibility to withstand the forces exerted during muscle activity.

Understanding the role of tendons highlights their importance in movement and stability. For instance, when a muscle contracts, it pulls on the tendon, which in turn pulls on the bone to initiate movement at a joint. This connection is fundamental for all types of voluntary movements, from walking to more complex athletic activities.

The other structures mentioned serve different functions. Ligaments connect bone to bone and provide stability to joints but do not directly connect muscles to bones. Cartilage serves as a cushioning material between bones at joints and does not function to attach muscles. Fascia is another connective tissue that surrounds muscles, groups of muscles, and organs, but it does not serve as a direct attachment between muscles and bones. Thus, the unique properties of tendons make them essential for the proper functioning of the muscular and skeletal systems.