A tendon is:

A tendon is specialized connective tissue that serves to connect muscles to bones. This is crucial for movement, as when a muscle contracts, the tendon transmits this force to the bone, causing joint movement. Tendons are made of strong collagen fibers, which provide the necessary strength and flexibility to withstand the stresses created during physical activity. This function is paramount for various physical movements, ranging from simple tasks like walking to more complex actions like throwing or jumping.

The other options describe different anatomical structures. The first option refers to joints, which are the places where bones meet, allowing for movement and support. The second option describes ligaments, which connect bones to other bones and provide stability to joints. The third option incorrectly suggests that tissue around bones contracts for movement, which more accurately describes muscle tissue rather than what tendons do. Hence, the definition stating that tendons connect muscles to bones is the most precise.