Connective Tissue

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Connective Tissue
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Connective tissue

• Made of cells suspended in an extra-cellular
  matrix
• Three types of fibers
• Collagen fibers
• Strong fibers
• Elastin fibers
• Flexible fibers
• Reticular fibers
• Create a delicate framework

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Types of connective tissue
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Areolar (loose) Tissue

• Few collagen fibers
• Cells of this tissue are spread out in the matrix

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• Lots of reticular fibers
• May be hard to see on the slides

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Dense Connective Tissue

• Abundant collagen fibers
• Closely packed
• Fine network of elastin fibers

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Elastic Connective Tissue

• Mainly elastin fibers
• Between collagen fibers and fibroblasts
• May be hard to see on the slides

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Cartilage

• Rigid connective tissue
• Provides support
• Matrix is abundant and made of
• Abundant collage fibers
• Gel-like ground substance
• Characteristic cells are found in little
  pocket-like structures called lacunae

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Hyaline Cartilage

• Most common type of cartilage

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Elastic Cartilage

• More flexible than hyaline
• Has more elastin fibers

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Fibrocartilage

• Very tough tissue
• Abundant collagen fibers

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Bone (osseous tissue)

• Most rigid tissue
• Cells also found in lacunae

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central (Haversian) canal
perforating (Volkmann) canal
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Blood

• Cells are suspended in a fluid matrix
• plasma
• Characteristic cellsred blood cells (RBCs) and
  white blood cells (WBC)

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