| A | B |
|---|
| Periosteum | the outer covering of bone |
| Compact Bone | "hard" bone |
| Spongy Bone | found at the ends of large bones; filled with pores |
| Bone Marrow | fatty tissue found in bones |
| Red Marrow | produces red blood cells |
| Yellow Marrow | stores fat inside the bone |
| Cartilage | thick, flexible tissue that prevents bones from rubbing together |
| Osteoarthritis | occurs when cartilage "wears away", and bones rub against each other |
| Fracture | a broken bone |
| Simple Fracture | a broken bone that does not penetrate through the skin |
| Compound Fracture | a severe injury where a broken bone breaks through the skin |
| Osteoblasts | special cells that help build/repair broken bone |
| Osteoclasts | special cells that help break down damaged bone |
| Growth Plate | developing tissue at the ends of large bones in children/adolescents |
| Ossify | to harden into bone |
| Osteoporosis | a bone disease where bones can break easily |
| Joint | a place where two bones connect together |
| Ligament | a place where a bone attaches to another bone |
| Pivot Joint | turning one's head |
| Hinge Joint | knee or elbow |
| Gliding Joint | wrist |
| Ball-n-Socket Joint | hip or shoulder |
| Immovable Joint | skull |
| Clavicle | collarbone |
| Scapula | shoulder blade |
| Humerus | "funny bone" |
| Radius | wrist bone |
| Sternum | breastbone |
| Ribs | protect heart and other vital organs |
| Vertebrae | backbone |
| Femur | thigh bone |
| Patella | knee cap |
| Phalanges | fingers and/or toes |
| Tibia | shin bone |
| Fibula | calf bone |
| Ulna | bone located on "little finger" side of wrist |
