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Anatomy & Physiology: Tissue Types and Characteristics

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  • What are the four major types of tissue?

    Epithelial, Connective, Muscle, and Nervous tissue.

  • Characteristics of Muscle tissue

    Includes skeletal, smooth, and cardiac types; contractions produce movement.

  • Characteristics of Epithelial tissue

    Classified by cell shape and layers; may contain cilia or microvilli; attaches to underlying tissue with basement membrane; usually avascular.

  • Characteristics of Nervous tissue

    Includes neurons and neuroglia; used to transmit signals.

  • Characteristics of Connective tissue

    Most abundant tissue; contains cells, fibers, and ground substance; used to bind structures and provide structural framework.

  • Epithelial tissue in the urinary bladder

    Transitional epithelium; allows stretching as bladder fills.

  • Epithelial tissue in the outer layer of skin

    Stratified squamous epithelium; protects against abrasion.

  • Epithelial tissue lining kidney tubules

    Simple cuboidal epithelium; allows absorption and secretion.

  • Epithelial tissue in air sacs of lungs

    Simple squamous epithelium; allows rapid diffusion of gases.

  • Epithelial tissue lining mouth and esophagus

    Stratified squamous epithelium; protects against mechanical stress.

  • Epithelial tissue lining trachea

    Pseudostratified columnar epithelium; contains cilia to move mucus.

  • Epithelial tissue in walls of capillaries

    Simple squamous epithelium; facilitates exchange of materials.

  • Epithelial tissue lining digestive tract

    Simple columnar epithelium; absorption and secretion; may have microvilli.

  • Description of Simple squamous epithelium

    One layer of thin, flattened cells.

  • Description of Pseudostratified columnar epithelium

    Single layer with nuclei at different levels, appears stratified; contains cilia.

  • Description of Stratified squamous epithelium

    Multiple layers of thin, flattened cells.

  • Description of Simple cuboidal epithelium

    Single layer of cube-shaped cells.

  • Description of Transitional epithelium

    Cells change shape between cuboidal and squamous.

  • Description of Simple columnar epithelium

    Single layer of elongated cells with nuclei aligned; may have microvilli.

  • Characteristic of Dense regular connective tissue

    Collagen fibers arranged parallel; withstands pulling in one direction.

  • Characteristic of Areolar connective tissue

    Loose connective tissue that binds skin to underlying organs.

  • Characteristic of Adipose tissue

    Cells store triglycerides for energy; appear white.

  • Characteristic of Hyaline cartilage

    Provides strong support and resists compression.

  • Characteristic of Blood

    Contains red and white cells and platelets in a fluid matrix.

  • Characteristic of Bone tissue

    Contains osteocytes in lacunae; provides structural support.

  • Characteristic of Dense irregular connective tissue

    Collagen fibers arranged irregularly; withstands pulling in many directions.

  • Characteristic of Reticular tissue

    Provides delicate support with a network of fibers.

  • Characteristic of Fibrocartilage

    The strongest cartilage type; resists compression.

  • Characteristic of Elastic cartilage

    Very flexible cartilage type.

  • Difference between collagen and elastic fibers

    Collagen fibers provide strength; elastic fibers provide flexibility.

  • Location of Hyaline cartilage

    Ends of long bones, nose, trachea.

  • Location of Dense irregular connective tissue

    Dermis of skin, joint capsules.

  • Location of Adipose tissue

    Under skin, around organs.

  • Location of Fibrocartilage

    Intervertebral discs, knee menisci.

  • Location of Dense regular connective tissue

    Tendons and ligaments.

  • Location of Elastic cartilage

    External ear, epiglottis.

  • Differences among skeletal, smooth, and cardiac muscle tissue

    Skeletal: multinucleated, striated, voluntary; Smooth: single nucleus, non-striated, involuntary; Cardiac: single nucleus, striated, involuntary, intercalated discs.

  • Difference between exocrine and endocrine glands

    Exocrine glands secrete through ducts (e.g., sweat glands); endocrine glands secrete hormones into blood (e.g., thyroid gland).

  • Expected recovery speed for torn cartilage in knee

    Slow recovery due to poor blood supply in cartilage tissue.