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Connective Tissues in Anatomy & Physiology

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  • What are the main functions of connective tissue?

    Support, protection, binding of other tissues, storage of energy, and transport of substances.

  • What are the three main components of connective tissue?

    Cells, fibers, and ground substance (extracellular matrix).

  • Name the types of connective tissue based on their matrix consistency.

    Loose connective tissue, dense connective tissue, cartilage, bone, and blood.

  • Describe areolar connective tissue and its function.

    Loose connective tissue with a gel-like matrix; binds skin to muscles and cushions organs.

  • Where is adipose tissue found and what is its role?

    Found under skin and around organs; stores fat for energy and insulation.

  • What characterizes dense regular connective tissue?

    Parallel collagen fibers; provides strong tensile strength in tendons and ligaments.

  • Where is dense irregular connective tissue found?

    In dermis of skin and organ capsules; fibers run in multiple directions for strength in various directions.

  • What is the composition and function of cartilage?

    Firm, flexible matrix with chondrocytes; provides support and cushioning in joints and structures.

  • Name the three types of cartilage.

    Hyaline, elastic, and fibrocartilage.

  • Where is hyaline cartilage found?

    Ends of long bones, nose, trachea; provides smooth surfaces for joint movement.

  • What is the function of elastic cartilage?

    Provides flexibility and maintains shape; found in ear and epiglottis.

  • Describe fibrocartilage and its location.

    Dense collagen fibers; provides strong support and shock absorption in intervertebral discs and knee menisci.

  • What are the characteristics of bone tissue?

    Hard, calcified matrix with osteocytes; provides structural support and protection.

  • What is the role of blood as connective tissue?

    Fluid matrix (plasma) with cells; transports oxygen, nutrients, and wastes.

  • What types of fibers are found in connective tissue?

    Collagen (strength), elastic (stretch), and reticular (support network).

  • What cell type produces collagen fibers?

    Fibroblasts synthesize collagen and other fibers.

  • What is the ground substance in connective tissue?

    Gel-like material surrounding cells and fibers; allows diffusion of nutrients and waste.

  • How does connective tissue differ from epithelial tissue?

    Connective tissue has more extracellular matrix and fewer cells; epithelial tissue is cell-dense with little matrix.

  • What connective tissue type provides insulation and energy storage?

    Adipose tissue.

  • Which connective tissue type forms tendons and ligaments?

    Dense regular connective tissue.