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Connective Tissue

Connective Tissue. Why is this possible?. Fresh, purified stem cells from fat tissue can grow bone faster and better than current methods, and potentially could eliminate the need for painful bone grafts, the authors of a new study say US News. Growing Bone?.

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Connective Tissue

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  1. Connective Tissue

  2. Why is this possible? • Fresh, purified stem cells from fat tissue can grow bone faster and better than current methods, and potentially could eliminate the need for painful bone grafts, the authors of a new study say • US News

  3. Growing Bone? • http://www.youtube.com/watch?v=FUjlLIMbCiQ

  4. Characteristics of Connective Tissue • Deep tissue • Vascular • Never exposed • Contains: • Cells • Fibers • Extracellular Matrix

  5. Functions of Connective Tissue • Provides support • Protects • Stores fat • Produces blood cells • Fights infection • Repairs tissue

  6. The cells of connective tissue proper • Macrophage • Mast Cell • Fibroblast • Adipocytes

  7. Macrophage • White blood cell • Part of immune system • Performs phagocytosis What organelle is most abundant?

  8. Mast Cell • Prevents the formation of clots • Involved in allergy response Sinus sample

  9. Fibroblasts • Most abundant • Maintain and produce fibers of connective tissue • What organelle is most abundant?

  10. Adipocytes • Store fat • What about the number of organelles in these cells?

  11. Fibers of connective tissue proper • Collagen • Elastic • Reticular

  12. Collagen Fibers • Most abundant • Structural protein • Long, straight, unbranched • Found in: tendons, ligaments, skin, bones

  13. What are this images?

  14. Elastic Fibers • Branch, wavy fibers • Will stretch and return shape • Found: smooth muscle (i.e. respiratory tract)

  15. Reticular Fibers • Forms interwoven networks • Branched fibers • Acts as supporting mesh • Found in: lymphatic system

  16. What is considered the extracellular matrix? • All fibers and ground substance • Ground Substance = gel-like; composed of glycosaminoglycans

  17. Loose Connective Tissue • Space between components • Binds organs to skin and one another • Forms thin membranes throughout body

  18. Adipose Tissue • Stores fat

  19. Dense/Fibrous Connective Tissue • Collagenous fibers closely packed • In dermis of skin, tendons, ligaments • Provides support

  20. Cartilage • Firm gel with fibers • Components: • Chondrocytes • Ground substance • Collagen fibers • Other fibers (depends on function)

  21. Types of Cartilage • Hyaline • Most common • Found on many joint surfaces, nasal septum, larynx, trachea, bronchi, ends of ribs • No nerves or blood vessels

  22. Types of Cartilage 2. Elastic Cartilage • Large numbers of elastic fibers • Found in external ear, epiglottis, larynx

  23. Types of Cartilage • Fibrocartilage • Dense fibers • Found in intervertebral discs, insertions of tendons and ligaments • Firm, but not rigid support

  24. Blood • Components: • Red Blood Cells • White Blood Cells • Platelets • Plasma • Function: transport & protect Form Fits Function

  25. Bone • Has salts dissolved in ECM • Supports body structure, protects, contains marrow

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