| A | B |
|---|
| Haversian canals | run length of bone, contain blood vessels in center, (center of tree-ring) |
| lacunae | little spaces that house osteocytes |
| osteocytes | bone cells |
| lamellae | layers or cylinders of calcified bone |
| hemopoiesis (hematopoiesis) | production of RBC in bones |
| osteoblast | cells which build bone/ lay down calcium from blood into bone |
| osteoclast | cells which break down bone to remove calcium |
| spongy | porous bone, found in ends of bones |
| compact | outer shell of bone, appears to be solid, but isn't |
| diaphysis | shaft of bone (contains yellow marrow) |
| epiphysis | extremeties / ends of bones / contains red marrow |
| metaphysis (epiphyseal plate) | contains the epiphyseal plate, made of hyaline cartilage (growth plate) |
| articular cartilage | absorbs shock at free moving joints, hyaline cartilage |
| periosteum | tissue surrounding bone for growth and repair |
| medullary cavity | space within the diaphysis which contians yellow marrow |
| endosteum | lining of medullary cavity |
| nutrient foramen | hole in diaphysis which brings in the nutrient artery |
| red marrow | site of RBC production in long bones |
| yellow marrow | site of lipid storage, important source of chemical energy |
| canaliculi | connect lacuna through the matrix |
| osteon | one unit of bone (one set of tree-ring circles) |
| short bone | like little cubes, in wrist and ankle |
| long bone | bone longer than wide |
| sesamoid | bone completely embedded within a tendon (knee cap) |
| irregular bone | no normal shape of bone vertebrae |
| flat bone | broad bone for muscle attachment |
| Wormian bones | bones found within sutures |
