Which of the following best describes the function of a ligament?

• A. Connect muscle to bone
• B. Connect bone to bone
• C. Support muscle movement
• D. Protect vital organs

Answer: (B)

The function of a ligament is to connect bone to bone, playing a crucial role in stabilizing joints and maintaining the structural integrity of the skeletal system. Ligaments are composed of strong, fibrous connective tissue, which allows them to withstand tension and support the joint during movement. By holding adjacent bones together, ligaments limit excessive movement and help prevent injuries, such as dislocations or sprains.

The other options provided refer to functions that are associated with different anatomical structures. Connecting muscle to bone is the role of tendons. Supporting muscle movement is primarily the function of muscles themselves, which contract and relax to facilitate motion. Protecting vital organs is not a direct function of ligaments, as that is typically the role of bones and other tissues that form protective cavities around organs. Understanding these distinctions is key to grasping the specific roles that different types of connective tissues play in the body.