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Connective Tissues


Function To serve as connective and supportive. Bind and hold body structures together. Serve in transport, exchange and body defense.
Blood Supply Bones: well vascularized Tendons and Ligaments: Poor supply Cartilage: Avascular; No blood supply
Extra Cellular Matrix A non-living substance produced by connective tissue. Two Main Parts: 1. Protein Fibers ( produced by fibroblasts which secrete a protein that creates the extra cellular fiber.) 2. Ground substance(Adhesion proteins- holds fibers to fibers.
Blast Building Cells
EC Matrix (cont) Around/ Outside of the Cell. The type of connective tissue is dependent upon the makeup for the extracellular matrix found in it
Bone Strongest tissue, very dry, many fibers, not a lot of water. Contains Haversian Systems(consists of a central canal where blood vessels and nerves can pass).
Osteocytes Bone Cells that sit in a cavity called a lacunae: surrounded by layers of hard matrix.
Cartilage Composed of Chondrocytes(only take up 2-5% of tissue mass). Nerves not located in cartilage. Cartilage is avascular.
Hyaline Cartilage Most abundant cartilage. Many collagen fibers, but rubbery. Hyaline= glassy(blue-whit appearance). Found in Larynx, attaches ribs to sternum, forms joints. Found in fetus skeleton
Fibro Cartilage Forms cushioning disks between vertebrae, found in certain bone joints on hips.
Elastic Cartilage Needed where elasticity is desired-earlobe, end of nose.
Cartilage- Dense Connective Has collagen fibers as main matrix element. Forms Tendons and Ligaments.
Loose connective- Areolar Nook and cranny filler, found everywhere. Space Filler
Loose Connective-Adipose Tissue in which fat cells predominate. Cells and tissue store oil- source of fuel. Protects organs. Found in breasts, hips and midsections
Loose Connective- Blood Consists of blood cells surrounded by a fluid matrix-plasma. Protein fibers only visible when clotting