A tendon is a strong, fibrous cord that connects muscles to bones. This connection allows for movement, as the contraction of a muscle pulls on the tendon, which in turn moves the bone. Tendons are essential for a wide range of movements, from walking and running to gripping and lifting.
Here are some key details about tendons:
- Composition: Tendons are primarily composed of collagen fibers, which are arranged in a tightly packed, parallel pattern. This structure provides tendons with their strength and flexibility.
- Function: Tendons act as a "mechanical bridge," transmitting the force generated by muscles to the bones. This allows for movement of the limbs and other body parts.
- Location: Tendons are found throughout the body, connecting muscles to bones in various joints, including the elbows, knees, shoulders, and wrists. They also connect muscles to structures like the eyeball.
- Common Injuries: Tendon injuries are common and can be caused by overuse, trauma, or age-related degeneration. Some common tendon injuries include tendinitis, tendon rupture, and tendonitis.
Examples of tendons include the Achilles tendon, which connects the calf muscle to the heel bone, and the patellar tendon, which connects the quadriceps muscle to the shinbone.
