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Connective Tissue

Connective Tissue. Connective Tissue. General Characteristics. General Functions. Does have blood vessels- variations in blood supply (ligaments and tendons don’t heal as fast because they are poorly vascularized) Cartilage is avascular –no blood supply- heals very slowly.

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Connective Tissue

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  1. Connective Tissue

  2. Connective Tissue General Characteristics General Functions • Does have blood vessels- • variations in blood supply (ligaments and tendons don’t heal as fast because they are poorly vascularized) • Cartilage is avascular –no blood supply- heals very slowly

  3. Connective Tissue General Characteristics General Functions • Does have blood vessels- • variations in blood supply (ligaments and tendons don’t heal as fast because they are poorly vascularized) • Cartilage is avascular –no blood supply- heals very slowly 2. Has extracellular matrix- a non-living substance outside the cells (surrounds cells), secreted by the connective tissue cells

  4. Connective Tissue General Characteristics General Functions Soft cushioning and packing around organs (ex. Adipose tissue) • Does have blood vessels- • variations in blood supply (ligaments and tendons don’t heal as fast because they are poorly vascularized) • Cartilage is avascular –no blood supply- heals very slowly 2. Has extracellular matrix- a non-living substance outside the cells (surrounds cells), secreted by the connective tissue cells

  5. Connective Tissue General Characteristics General Functions Soft cushioning and packing around organs (ex. Adipose tissue) Can bear weight (bones) • Does have blood vessels- • variations in blood supply (ligaments and tendons don’t heal as fast because they are poorly vascularized) • Cartilage is avascular –no blood supply- heals very slowly 2. Has extracellular matrix- a non-living substance outside the cells (surrounds cells), secreted by the connective tissue cells

  6. Connective Tissue General Characteristics General Functions Soft cushioning and packing around organs (ex. Adipose tissue) Can bear weight (bones) Can withstand stretching and abrasion • Does have blood vessels- • variations in blood supply (ligaments and tendons don’t heal as fast because they are poorly vascularized) • Cartilage is avascular –no blood supply- heals very slowly 2. Has extracellular matrix- a non-living substance outside the cells (surrounds cells), secreted by the connective tissue cells

  7. Connective Tissue General Characteristics General Functions Soft cushioning and packing around organs (ex. Adipose tissue) Can bear weight (bones) Can withstand stretching and abrasion Can bind together other body tissues • Does have blood vessels- • variations in blood supply (ligaments and tendons don’t heal as fast because they are poorly vascularized) • Cartilage is avascular –no blood supply- heals very slowly 2. Has extracellular matrix- a non-living substance outside the cells (surrounds cells), secreted by the connective tissue cells

  8. Connective Tissue General Characteristics General Functions Soft cushioning and packing around organs (ex. Adipose tissue) Can bear weight (bones) Can withstand stretching and abrasion Can bind together other body tissues Can absorb large amounts of water and serve as a reservoir (fibrocartilage between vertebrae) • Does have blood vessels- • variations in blood supply (ligaments and tendons don’t heal as fast because they are poorly vascularized) • Cartilage is avascular –no blood supply- heals very slowly 2. Has extracellular matrix- a non-living substance outside the cells (surrounds cells), secreted by the connective tissue cells

  9. Classification

  10. Bone Description Examples Skull, protects the brain • Osseous tissue • Bone cells are small caves called lacunae surrounded by hard matrix of calcium phosphate • Protects organs

  11. Cartilage Description Examples Hyaline cartilage – glassy and smooth, found at the ends of bones Fibrocartilage – cushions bones, intervertebral disks Elastic cartilage – stretchy, in ears • Less hard and more flexible

  12. Dense Connective Tissue Description Examples Ligaments and tendons • Collagen fibers in a dense matrix • Cells, called fibroblasts, are more crowded

  13. Loose Connective Tissue Description Examples Cobwebby covering over muscles – Areolar Fat – Adipose tissue • Softer and fewer cells, more matrix

  14. Blood Description Examples Blood • Cells within a liquid matrix called plasma

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