What is the primary function of tendons in the body?

Tendons play a crucial role in the musculoskeletal system by connecting bone to skeletal muscle. This connection allows for the transfer of force generated by muscles to the bones, enabling movement of the skeleton. When a muscle contracts, the tendon pulls on the attached bone, which results in movement at the joint. This is essential for all types of physical activity, from simple tasks like walking to complex movements involved in sports.

The other options do not correctly describe the primary function of tendons. For example, buffering shocks in joints is typically the role of cartilage, which provides cushioning and support at the joint surfaces. Connecting bone to bone is the function of ligaments, which stabilize joints. Providing insulation to muscles is not a function associated with tendons at all; rather, this aspect pertains more to adipose tissue and other structures. Therefore, the correct understanding of tendons emphasizes their vital role in the connection between skeletal muscle and bone, facilitating movement.