Bone Biology - AR220 Bone Biology Molecules made of atoms cells made of molecules Cells of many types are the working components of organisms Tissues

Bone Biology - AR220 Bone Biology Molecules made of atoms...

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AR220 Bone Biology Molecules made of atoms, cells made of molecules Cells of many types are the working components of organisms Tissues are composed of groups of cells with similar and coordinated functions Organs combine several tissues that function together Organ systems are composed of several related organs Organisms are made up of organs and organ system Cellular Level 3 types of bone cells are recognized o Osteoblasts: Bone forming cell; lay down osteoid Bone spicule o Osteoclasts: Cells that resorbs bone; take damage/aged bone away o Osteocytes: Mature bone cell surrounded by bone (mature osteoblast) Bone marrow Blood vessel Tissue Level Bone is a living dynamic tissue that is capable of self repair and can adjust to new loads Bone tissue is made of: osteocytes, collagen fibers, matrix made of calcium phosphate/hydroxyapatite Functions: o Structural support o Storage (minerals and lipids and yellow marrow) o Blood cell production (red marrow)
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  • Winter '15
  • Dr.BonnieGlencross
  • Bone marrow, mature bone cell

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