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Anatomy & Physiology: Tissue Types and Characteristics

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이 집합의 용어 (16)

  • What is histology?

    Histology is the study of tissues.

  • Name the four basic tissue types.

    Epithelial, Connective, Muscle, and Nervous tissue.

  • What are the two main forms of epithelial tissue?

    Covering/lining epithelium and glandular epithelium.

  • List the main functions of epithelial tissue.

    Protection, absorption, filtration, excretion, secretion, and sensory reception.

  • What special characteristics distinguish epithelial tissue?

    Polarity, specialized contacts (tight junctions, desmosomes), supported by connective tissue, avascular but innervated, and high regeneration capacity.

  • How is epithelial tissue classified by layers?

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

  • How is epithelial tissue classified by cell shape?

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

  • Describe simple squamous epithelium and its function.

    Single layer of flattened cells; allows rapid diffusion and filtration.

  • Where is simple squamous epithelium found?

    Kidney glomeruli, air sacs of lungs, lining of heart, blood vessels, and lymphatic vessels.

  • What is the function of simple cuboidal epithelium?

    Secretion and absorption.

  • Where is simple cuboidal epithelium located?

    Kidney tubules, ducts, and secretory portions of small glands.

  • Describe simple columnar epithelium and its functions.

    Single layer of tall cells, often with microvilli or cilia; absorption and secretion of mucus, enzymes, and other substances.

  • Where is simple columnar epithelium found?

    Digestive tract, gallbladder, ducts of glands, bronchi, and uterine tubes.

  • What is pseudostratified columnar epithelium?

    Appears multi-layered but is a single layer; often ciliated and contains goblet cells.

  • What is the function of pseudostratified columnar epithelium?

    Secretion of mucus and movement of mucus by ciliary action.

  • Where is pseudostratified columnar epithelium located?

    Upper respiratory tract, ducts of large glands, and tubules in testes.