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Histology Basics - Anatomy & Physiology

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  • What is histology?

    Histology is the study of the microscopic structure of tissues.

  • Name the four basic tissue types.

    Epithelial, connective, muscle, and nervous tissues.

  • What is the main function of epithelial tissue?

    To cover body surfaces, line cavities, and form glands.

  • How are epithelial tissues classified?

    By cell layers (simple or stratified) and cell shape (squamous, cuboidal, columnar).

  • What is connective tissue?

    Tissue that supports, binds, and protects other tissues and organs.

  • Name three types of connective tissue.

    Loose connective tissue, dense connective tissue, and specialized connective tissue (like bone and blood).

  • What is the extracellular matrix?

    The non-cellular component of connective tissue made of protein fibers and ground substance.

  • What are the main protein fibers in connective tissue?

    Collagen, elastic, and reticular fibers.

  • What is the function of muscle tissue?

    To produce movement through contraction.

  • Name the three types of muscle tissue.

    Skeletal, cardiac, and smooth muscle.

  • What distinguishes skeletal muscle tissue?

    It is voluntary, striated, and multinucleated.

  • What is nervous tissue composed of?

    Neurons and supporting glial cells.

  • What is the primary function of nervous tissue?

    To transmit electrical signals for communication and control.

  • What is the basement membrane?

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

  • What is the difference between simple and stratified epithelium?

    Simple has one cell layer; stratified has multiple layers.

  • What type of epithelium is found in areas subject to abrasion?

    Stratified squamous epithelium.

  • What is the role of goblet cells in epithelial tissue?

    To secrete mucus for lubrication and protection.

  • What is the function of adipose tissue?

    To store energy as fat and provide insulation and cushioning.

  • What type of connective tissue connects muscles to bones?

    Tendons, made of dense regular connective tissue.

  • What is the main characteristic of cardiac muscle tissue?

    It is involuntary, striated, and has intercalated discs for synchronized contraction.