| A | B |
| abnormal condition of stiffness in a joint as seen in chronic rheumatoid arthritis | ankylosis |
| inflammation of a joint | arthritis |
| inflammation of a bursa | bursitis |
| abnormal condition of the vertebrae, term used to describe changes to the spine from osteoarthritis to ankylosis | spondylosis |
| softening of cartilage | chondromalacia |
| congenital fissure of the skull | cranioschisis |
| inflammation of a disk | discitis |
| pain in fibrous tissue and muscle - widespread pain and stiffness of muscles, fatigue and disturbed sleep | fibromyalgia |
| abnormal condition of a hump of the thoracic spine | kyphosis |
| abnormal condition of bending forward - forward curvature of the lumbar spine | lordosis |
| inflammation of the meniscus | meniscitis |
| muscle weakness | myasthenia |
| malignant tumor in the bone marrow | myeloma |
| inflammation of the bone | osteitis |
| inflammation of the bone and joint | osteoarthritis (OA) |
| abnormal reduction of bone mass, can lead to osteoporosis | osteopenia |
| inflammation of the bone and cartilage | osteochondritis |
| softening of the bones | osteomalacia |
| inflammation of the bone and bone marrow | osteomyelitis |
| abnormal condition of stone-like bones caused by an increased formation of bone | osteopetrosis |
| malignant tumor of the bone | osteosarcoma |
| inflammation of many muscles | polymyositis |
| congenital fissure of the vertebral column (spina bifida) | rachischisis |
| abnormal lateral curve of the spine | scoliosis |
| inflammation of the vertebral joints | spondylarthritis |
| malignant tumor of the synovial membrane | synoviosarcoma |
| inflammation of a tendon | tendinitis |
| dissolution of striated muscle caused by trauma, extreme exertion, or drug toxicity; in severe cases renal failure can occur | rhabdomyolysis |
| inflammation of the tendon and synovial membrane | tenosynovitis |
| abnormal reduction of connective tissue (such as loss of skeletal muscle mass in the elderly) | sarcopenia |
| malignant tumor of cartilage | chondrosarcoma |
| tumor composed of bone and cartilage (benign) | osteochondroma |
| osteonecrosis | abnormal condition of bone death ( due to lack of blood supply) |