The largest joint in the human body is the knee joint.
The knee is a complex hinge joint that connects the femur (thigh bone) to the tibia (shin bone). It's responsible for a wide range of movements, including flexion (bending), extension (straightening), and a small degree of rotation. The knee joint's size and complexity are necessary to support the body's weight and allow for activities like walking, running, and jumping.
The knee joint is not just a simple hinge. It also involves:
- Cartilage: Covers the ends of the bones and provides a smooth surface for movement.
- Ligaments: Strong bands of tissue that connect the bones and provide stability. Major ligaments include the ACL, PCL, MCL, and LCL.
- Tendons: Connect muscles to bones and allow for movement.
- Menisci: C-shaped pieces of cartilage that act as shock absorbers.
Due to its size and the forces it endures, the knee joint is also prone to injuries, such as ligament tears, meniscus tears, and osteoarthritis.
