Connective tissues
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Connective Tissues. Page 81 - 85. Functions. Protection Support Binding together other body tissues. Characteristics. Most connective tissues are vascularized (have good blood supply) Ligaments and tendons are exceptions Contains extracellular matrix

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Connective Tissues

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Connective Tissues

Page 81 - 85


Functions

  • Protection

  • Support

  • Binding together other body tissues


Characteristics

  • Most connective tissues are vascularized (have good blood supply)

    • Ligaments and tendons are exceptions

  • Contains extracellular matrix

    • nonliving substance found outside the cells

    • produced by the connective tissue


Types of Connective Tissue

  • Bone = Osseous

  • Cartilage

  • Dense connective

  • Loose connective

    • Areolar

    • Adipose

    • Reticular

  • Blood


Bone / Osseous

  • Cells are in cavities (lacunae)

  • Matrix – hard; contains calcium salts and collagen fibers

  • Protects and supports


Bone / Osseous


Cartilage

  • Matrix is more flexible made of collagen fiber hidden by a rubbery matrix with a glassy white appearance.

  • Found in the larynx; covers ends of bones; attaches ribs to breastbone; skeleton of fetus


Cartilage


Dense Connective

  • Main matrix are collagen fibers. More stretchy than cartilage matrix.

  • Makes of tendons and ligaments.


Dense Connective


Loose Connective – Areolar Tissue

  • Most widely distributed

  • Cushions organs

  • Has fluid matrix – appears to be empty space

  • “cobwebby” tissue


Loose Connective – Areolar Tissue


Loose Connective – Adipose Tissue

  • Fat tissue

  • Matrix – droblet of oil in cell

  • Cushions organs such as kidneys and eyes; found under the skin


Loose Connective – Adipose Tissue


Loose Connective – Reticular Tissue

  • Matrix – delicate network of interwoven reticular fibers

  • Support free blood cells in lymph nodes, spleen and bone marrow


Loose Connective – Reticular Tissue


Blood

  • Vascular tissue

  • Matrix – blood plasma

  • Transports wastes, respiratory gases, nutrients and other substances.


Blood


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