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Anatomy & Physiology: Tissue Types and Characteristics Part 2

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Termini in questo insieme (21)

  • What are the four primary tissue types in the body?

    Epithelial, connective, muscle, and nervous tissues.

  • What composes tissues besides cells?

    Groups of similar specialized cells and the extracellular matrix surrounding them.

  • What is the extracellular matrix in connective tissue?

    A substance consisting of protein fibers, ground substance, and/or fluid that separates cells.

  • Name the three types of protein fibers in connective tissue matrix.

    Collagen (strength), reticular (network formation), and elastic (stretch and recoil).

  • What is a key characteristic of epithelial tissue regarding blood supply?

    Avascular: epithelial tissue lacks blood vessels.

  • What surfaces are present in epithelial tissue?

    Apical surface (exposed) and basal surface connected to a basement membrane.

  • How are epithelial tissues classified by layers?

    Simple (single layer) and stratified (multiple layers).

  • What are the three common epithelial cell shapes?

    Squamous (flat), cuboidal (cube-shaped), and columnar (tall, column-shaped).

  • What is the function of collagen fibers in connective tissue?

    Provide strength to the tissue.

  • What is the role of elastic fibers in connective tissue?

    Allow the tissue to stretch and recoil.

  • What is the function of reticular fibers in connective tissue?

    Form networks that support cells and structures.

  • What type of cells are found in muscle tissue?

    Excitable cells that can contract upon stimulation.

  • What is the main function of nervous tissue cells?

    To conduct electrical impulses called action potentials.

  • What is a fibroblast?

    A cell in connective tissue that produces fibers and extracellular matrix.

  • Define 'lumen' in epithelial tissue context.

    The hollow space or cavity inside a tubular structure lined by epithelium.

  • What does 'pseudostratified' mean in epithelial tissue?

    A single layer of cells that appears multilayered due to nuclei at different levels.

  • What is the basement membrane?

    A thin layer that anchors epithelial tissue to underlying connective tissue.

  • What is areolar connective tissue?

    A loose connective tissue that supports and cushions organs.

  • What is adipose tissue?

    Connective tissue specialized for fat storage and insulation.

  • What characterizes dense regular connective tissue?

    Collagen fibers aligned in parallel bundles providing strong tensile strength.

  • What is hyaline cartilage?

    A type of connective tissue with a glassy, smooth matrix that supports and cushions joints.