| A | B |
| Ossifiction | process of forming bone tissue |
| epiphseal disk | site of lengthwise growth of long bones |
| osteocytes | mature bone cells |
| osteoblast | bone building cells |
| osteoclasts | huge cells that digest bone. |
| fibrous joints | permits little or no movement;holds together with collangeous fibers |
| sutures joints | immovable fibrous joint in the skull |
| cartilaginous joint | hyaline cartilage; allows little or not movement |
| synovial joint | greatest movement and has a cavity filled with fluid |
| bursae | fuild-filled sac that helps to protect synovial joint |
| scoliosis | abnormal lateral curvature of the spine |
| adbuction | moving a part away from the midline |
| adduction | moving a part toward the midline |
| pronation | turning the hand so the palm is downward |
| supination | turning the hand so the palm is upward. |
| eversion | turning the foot so the sole faces laterally |
| inversion | turning the foot so the sole faces medially. |
| myofribril | threadlike structure of a muscle fiber made of myosin and actin |
| sarcolemma | cell membrane of a muslce fiber |
| sarcomere | contractile unit from 1 Z line to the next Z line. |