Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is an osteon | Functional unit of compact bone
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| Central canal (bone) | Contains blood vessels and nerves
-lined with endosteum (thin vascular membrane of connective tissue)
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| Perforating canals | -perpendicular to surface of Bone
-carry blood vessels into deep bone marrow
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| Lamellae | Layers of bone matrix
-collagen fibers of neighboring lamellae run in opposite directions to resist twisting and bending forces
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| Concentric lamellae | Surround central canal
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| Interstitial lamellae | Fill spaces between osteons
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| Circumferential lamellae | Are at outer and inner bone surfaces
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| Trabecular of spongy bone | Matrix of open network of struts
-helps reinforce bone strength by resisting forces from multiple directions
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| What does spongy bone lack? | Osteons
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| What does trabecular lack? | Capillaries and venules
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| 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
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| Yellow bone marrow | Stores fat (triglycerides)
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| 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
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| Perforating fibers | Fingers that become incorporated into bone today
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| Function of periosteum | -isolate Bone
-provide a route for blood vessels and nerves
-participate in bone growth and repair
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| 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"
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Created by:
Garciamentzer
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