| A | B |
|---|
| Osteoblast | A bone forming cell |
| Osteocyte | A mature bone cell surrounded by bone matrix |
| Osteoclast | A large, multinucleated cell that breaks down bone |
| Hematoma | A localized mass of blood that is confined to an organ or some definable space |
| Callus | A mass of tissue that connects the ends of a broken bone |
| Anatomical Position | The position acquired when one stands erect with the feet facing forward, the upper limbs hanging at the sides, and the palms facing forward with the thumbs to the outside |
| trabeculae | little beams of bone that form the latticework in cancellous bone tissue |
| canaliculi | the extensions found on osteocytes, which communicate with one another |
| osteons | tightly-packed cylinders that make up compact bone tissue |
| interstitial lamellae | the "packing material" between the osteons |
| fibrous joint | immovable or slightly movable joint between two bones |
| syndesmosis | partly movable fibrous joint (i.e. between radius & ulna) |
| synchondrosis | immovable cartilaginous joints made of hyaline (i.e. between ribs and sternum) |
| symphysis | partly movable cartilaginous joints made of fibrocartilage |
| synovial joints | joints that allow for great movement and the ends of the bones are covered with articular cartilage |
| bursa | a fluid-filled cushion between bones, tendons, to prevent rubbing |
| proximal | anatomical position for nearest |
| distal | anatomical position for distant |
| anterior | anatomical position for front |
| posterior | anatomical position for back |
| lateral | anatomical position for away from the midline |
| medial | anatomical position for close to the midline |
| abduction | motion which moves the bones away from the midline |
| adduction | motion which moves the bones towards the midline |
| pronation | rotation of the forearm so that the palm faces down (inferior) or back (posterior) |
| supination | rotation of the forearm so that the palm faces up (superior) or forward (anterior) |
