Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
PT203 Bone Vocab
PT 203 W2 Bone Vocab
| Term | Definition |
|---|---|
| Ossification | Conversion of cartilage to bone. Occurs during the second & thirds months of embryonic life |
| Osteoblasts | bone-building cells that become active during the ossification stage |
| Collagen | a fibrous protein, intercellular substance giving the tissue strength & resilience |
| Osteocytes | a star-shaped cell that remain enclosed after the intercellular material has hardened. they are still alive & continue to maintain the existing bone matrix. They do not produce new bone tissue |
| Osteoclasts | large, multi-nucleated cells. responsible for resorption |
| Hormones regulating bone formation & resorption | Vitamin D - promotes Calcium absorption from intestine Calcitonin - produced in the thyroid gland. promotes the uptake of calcium by bone tissue Parathyroid (PTH) - produced in the parathyroid glands. causes bone resorption & release of calcium in blood |
| Red Marrow | found at the ends of the long bones & the center of other bones |
| Yellow Marrow | found mainly in the central cavities of the long bones. composed mostly of fat |
| Periosteum | membrane covering the outside of bones. |
| Endosteum | lining the bone's marrow cavity. contains cells that also aid in the growth & repair of bone tissue |
| Haversian Canal | contains nerves & blood vessels (inside Compact Bone) |
| Perforating (Volkmann) Canals | appear from one side of the bone shaft to the other (In Compact Bone) |
| What are the 3 primary layers of the skeletal muscles? | Endomysium - around each individual muscle fiber Perimysium - around fascicles (bundles) of muscle fibers Epimysium - around entire muscle; forms innermost layer of deep fascia |
| Diaphysis | long, narrow shaft of the long bone |
| Medullary | located in the center of the diaphysis (long, narrow shaft of the long bone) containing bone marrow |
| Epiphysis | Irregular ends of the long bones |
Created by:
pierce258
Popular Anatomy sets