bone, joint, and muscle disorders
Introduction to Muscle, Bursa, and Tendon Disorders
Introduction
The muscles, bursae, tendons, and bones must be healthy and functioning correctly for the body to move normally. Muscles, which contract to produce movement, are connected to the bones by tendons. Bursae are flat sacs containing joint (synovial) fluid. They reduce friction in areas where skin, muscles, tendons, and ligaments rub over bones. (See also Introduction to the Biology of the Musculoskeletal System .) Often, muscles, bursae, and tendons are Overview of Sports Injuries . Injury, overuse, infection, and occasionally disease can temporarily or permanently damage these structures. Damage can cause pain, limit control over movement, and reduce the normal range of motion. Disorders of the muscles, bursae, and tendons include Baker Cysts None Bursitis None Tendinitis and Tenosynovitis None Fibromyalgia , although covered here, is thought to be a central pain syndrome, not a disorder of muscles, bursae, or tendons. 