What do tendons primarily connect?

Tendons are fibrous connective tissues that primarily connect muscles to bones. When a muscle contracts, it pulls on the tendon, which in turn pulls on the bone to facilitate movement. This attachment is crucial for the functioning of the musculoskeletal system, allowing for coordinated movements like walking, lifting, and running.

The role of tendons is distinct from that of ligaments, which connect bones to other bones to provide stability and support to joints. Understanding this difference is essential, as it highlights the unique function tendons serve in enabling muscle action. Additionally, the incorrect options reflect misunderstandings about the connective roles of different tissues in the body. Option A suggests muscle to muscle connections, which are made by fascia or other connective tissues rather than tendons. Option B incorrectly states that tendons connect bone to bone; that is the role of ligaments. Lastly, option D misidentifies the connection between ligaments and cartilage, which is not related to the primary function of tendons. By identifying the correct connection, one can better appreciate the anatomy and function of the musculoskeletal system.