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
Compact/Spony Bone
| Question | Answer |
|---|---|
| What is an osteon | Functional unit of compact bone |
| Central canal (bone) | Contains blood vessels and nerves -lined with endosteum (thin vascular membrane of connective tissue) |
| Perforating canals | -perpendicular to surface of Bone -carry blood vessels into deep bone marrow |
| Lamellae | Layers of bone matrix -collagen fibers of neighboring lamellae run in opposite directions to resist twisting and bending forces |
| Concentric lamellae | Surround central canal |
| Interstitial lamellae | Fill spaces between osteons |
| Circumferential lamellae | Are at outer and inner bone surfaces |
| Trabecular of spongy bone | Matrix of open network of struts -helps reinforce bone strength by resisting forces from multiple directions |
| What does spongy bone lack? | Osteons |
| What does trabecular lack? | Capillaries and venules |
| Red bone marrow | -fills spaces between trabecular -consists of lose connective tissue that supports hematopoietic (blood forming cells) -contains blood vessels that supply nutrients to osteocytes |
| Yellow bone marrow | Stores fat (triglycerides) |
| Periosteum | Vascular membrane that covers outside of Bones -outer, fibrous later and inner, cellular layer -rich with blood vessels -fingers are interwoven with tendons and ligaments |
| Perforating fibers | Fingers that become incorporated into bone today |
| Function of periosteum | -isolate Bone -provide a route for blood vessels and nerves -participate in bone growth and repair |
| Endosteum | Incomplete cellular layer that lines medullary cavity -consists of flattened layer of osteogenic cells and osteoblasts "Incomplete layer containing osteoblasts osteogenic cells and osteoclasts" |
Created by:
Garciamentzer
Popular Anatomy sets