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Dense Connective Tissue Cartilage

Dense Connective Tissue Cartilage. Cartilage. Defined : Specialized form of connective tissue. It’s matrix is composed of collagen and elastic fibers embedded in a gelatinous ground substance. Function: Collagen gives strength, while the ground substance gives resiliency. Characteristics:

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Dense Connective Tissue Cartilage

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  1. Dense Connective TissueCartilage

  2. Cartilage Defined: Specialized form of connective tissue. It’s matrix is composed of collagen and elastic fibers embedded in a gelatinous ground substance. Function: Collagen gives strength, while the ground substance gives resiliency. Characteristics: Firm and flexible tissue Matrix contains up to 80% water Avascular No nervous tissue The cells/structures present in cartilage: chrondrocytes, lacunae, & perichrondrocytes

  3. The Cells & Structures of Cartilage Defined: • Chrondrocytes (chrondro = cartilage): Cells that secrete cartilage’s fibers and ground substance. • Lacunae(little lakes): Space in cartilage where chrondrocytes lie. • Perichondrium(peri = around): Surface of cartilage that is surrounded by dense irregular connective tissue. It is vascular and contains nervous tissue.

  4. Hyaline Cartilage (hyalos= glass) • Appearance:Contains fine collagen fibers • Fibers not easily visible • Function: Provides flexibility, support, reduces friction, and absorbs shock. • Most abundant cartilage in the body • Found in nose, connects ribs to sternum, long ends of bones, embryonic skeleton • The weakest of the 3 types of cartilage

  5. Table 4.2g figure 2

  6. Elastic Cartilage • Appearance:Chondrocytes in thread-like network • Function: Provides support and elasticity • Found in external ear cartilage • Similar to hyaline cartilage except its matrix contains a large amount of elastic fibers. • Different from hyaline in that it is more flexible/elastic.

  7. Table 4.2i figure 2

  8. Fibrocartilage • Appearance: Thick collagen fibers visible • Function: Provides strength, joint cushioning, rigidity • Found in vertebral discs, knee, pubic symphysis • Lacks a perichondrium • Strongest type of cartilage

  9. Table 4.2h figure 2

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