The Missouri and the lower Mississippi are usually considered as a single waterway, which is among the longest in the world. The <b>Missouri River</b> starts in Montana and flows generally east and south for <b>2540 miles</b> before flowing into the Mississippi River, the second longest river in the United States. The Mississippi River (the <i>largest</i> river system) flows from Minnesota to the Gulf of Mexico.
Knee. The knee is a complex pivotal hinge joint that connects the bones in the upper and lower leg, comprised of muscle, ligaments, tendons, and the meeting of four bones: the femur, tibia, fibula, and patella. It is the largest joint in the body. Read More.
3 Understanding Knee Replacement The knee is a hingelike joint, formed where the thighbone, shinbone, and kneecap meet. It is supported by muscles and ligaments and lined with cartilage. The cushioning cartilage can wear away over time. As it does, the knee becomes stiff and painful. A knee prosthesis (artificial joint) can replace the painful joint and restore movement. In amedjointWorn ...