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Feb 19, 2009 ... Science question: Why is spongy bone so spongy? User:Mbussey; Timestamp:20090219154606 what is spongy bone.
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wiki.answers.com/Q/Discuss:Why_is_spongy_bone_so_spongy
wiki.answers.com/Q/Discuss:Why_is_spongy_bone_so_spongy
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It's the longest, largest and strongest bone of the body, must be so because of the incredible forces placed upon it. ... Spongy bone is not exactly spongy. Towards the center of the bone, the bone gets more hollow. This is why it is called spongy. Located within the spongy bone is red bone marrow-sound nad yellow bone...
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library.thinkquest.org/2935/Natures_Best/Nat_Best_Low_L...
library.thinkquest.org/2935/Natures_Best/Nat_Best_Low_Level/skeletal_page.L.html
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Spongy bone (trabecular bone, cancellous bone) ... The direction of the collagen fibers alternates from lamella to lamella, so that at any one time the anisotropy is visible only in every alternate lamella. At the periphery of each osteon, and separating it from adjacent osteons or interstitial systems, is a cement line.
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www.technion.ac.il/~mdcourse/274203/lect5.html
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3-20) osteoclasts with ruffled contact surfaces in their Howship's lacunes / resorption pits, compact cortical bone, spongy cancellous bone, the inert (?) cells that line bone (osteoblasts that did not become osteocytes), and so forth.
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www.pathguy.com/lectures/bones.htm
www.pathguy.com/lectures/bones.htm
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-primarily compact bone but can contain spongy bone in the interior ... -mostly spongy bone with a thin compact bone surface layer. ... -trabeculae in center of the bone remain distinct so spongy bone is produced.
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www.employees.csbsju.edu/mcampos/bio114/lectnotes/bone....
www.employees.csbsju.edu/mcampos/bio114/lectnotes/bone.114.F02.html
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Everywhere covers the bone ... Changes during life ... Inner layer - elastic fibers...
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www.trinity.edu/rblyston/MicroA/Lectures/L12-html/tsld0...
www.trinity.edu/rblyston/MicroA/Lectures/L12-html/tsld014.htm
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The magnifications of this so-called spongy bone show a typical appearance for normal anatomy (left) and the thinner and incomplete beams of bone seen in osteoporosis (right).
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www.lanl.gov/quarterly/q_w03/bone_st.shtml
www.lanl.gov/quarterly/q_w03/bone_st.shtml
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They are now called the bone's periosteum. But the newer osteoblasts made by the periosteum cannot enter the spongy bone. So, instead, they begin to accumulate on the edges of the spongy bone. There, they lay down more hard matrix, but now as compact bone.
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faculty.stcc.edu/AandP/AP/AP1pages/Units5to9/bone/boned...
faculty.stcc.edu/AandP/AP/AP1pages/Units5to9/bone/bonedev.htm
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The remaining spongy bone must redistribute the load to bear the weight, but this makes the bone support structure less efficient and leaves the bone more vulnerable to fracture. ... However, both mice and humans lose bone after radiation exposure, so the results raise a red flag.
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www.the-aps.org/press/journal/06/16.htm
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