| Term | Definition |
| epiphysis | end of long bone |
| spongy bone | small needle like pieces of bone & lots of open space |
| short bone | cube shaped & and mostly spongy bone |
| epiphyseal plate | flat plate of hyaline cartilage |
| periosteum | double layered connective tissue that covers & nourshes bone |
| hematoma | clotted blood masses |
| irregular bone | bones that do not fit one of the proceeding categories |
| osteoblasts | bone forming cells |
| diaphysis | shaft of long bone (compact bone) |
| foramen | opening in bone or between body cavities |
| flat bone | thin, flattened, & curved |
| osteoclasts | large cells that resorb or break down bone matrix |
| compact bone | dense & looks smooth |
| long bone | longer than they are wide (compact bone) |
| hematopoiesis | formation of blood cells |
| green stick fracture | twig break |
| communited fracture | many fragments |
| simple fracture | clean break |
| spiral fracture | ragged break (twisting) |
| compound fracture | penetrates skin |
| compression fracture | crushed |
| depression fracture | portion pressed inward |