| A | B |
|---|
| The cranium encases the brain and functions in ? | Protection |
| Bones function to store what material? | Calcium salts or hydroxyapatite |
| Hematopoiesis refers to what function of the skeletal system? | Blood formation |
| Yellow bone marrow is composed primarily of what? | Fat, blood vessels, nerves |
| Red bone marrow is composed primarily of what? | Hemopoietic cells; blood stem cells |
| What do osteoblasts do? | Build bone |
| What do osteoclasts do? | Break down bone |
| Which bone cell would you find in mature bone tissue? | Osteocytes |
| What are canaliculi? | Extensions of osteocytes reaching into the matrix of the osteon. |
| What are blood/nerve canals which extend laterally within compact bone called? | Volkmann's canals |
| What are the bone plates which extend throughout cancellous bone called? | Trabeculae |
| Where would you expect to find cancellous bone in flat bones? | Inside the bone with layers of compact bone on either side. |
| Cancellous bone is also called ? | Spongy bone |
| By what process are most bones in the body formed? | Endochondral ossification |
| Bones formed in the skull are predominantly formed by what form of ossification? | Intramembranous |
| Where does endochondral ossification begin in a long bone? | Middle of the diaphysis. |
| Where does secondary ossification takes place in long bones? | Both epiphyses. |
| Of what tissue is the epiphyseal plate composed? | Hyaline cartilage |
| What is the fibrous connective tissue which surrounds bone? | Periosteum |
| During endochondral ossification, the medullary canal is formed by what process? | Osteoclasts eat away the cancellous bone which fills the area. |
| In what ways does healthy, mature bone metabolize material? | Resorption and deposition of calcium salts. |
| How does vitamin D assist bone formation? | Stimulates absorption of calcium in the digestive tract; calcificaiton of the matrix deficient |
