Pathology: Acute and Chronic Inflammation Repair
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Pathology: Acute and Chronic Inflammation Repair

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Questions and Answers

What is a characteristic of healing by primary intention?

  • Small scar formation (correct)
  • Longer time
  • Wound contraction
  • Excess granulation tissue

    • What type of scar is characterized by excess granulation tissue?

  • Ulcer scar
  • Contracture scar
  • Hypertrophic scar (correct)
  • Burns

    • What is an example of a tissue that can repair by regeneration?

  • Bone
  • Dermis
  • Epidermis (correct)
  • Central Nervous system

    • What type of cells are hematopoietic cells an example of?

    <p>Labile cells</p> Signup and view all the answers

    What is the result of repair by regeneration?

    <p>Replacement of damaged cells by new cells of the same kind</p> Signup and view all the answers

    What is a characteristic of defective healing?

    <p>Fistula formation</p> Signup and view all the answers

    What type of cells are nerve cells an example of?

    <p>Permanent cells</p> Signup and view all the answers

    What is a characteristic of healing by secondary intention?

    <p>Excess granulation tissue</p> Signup and view all the answers

    What is the process of replacing damaged tissue with new healthy tissue called?

    <p>Regeneration</p> Signup and view all the answers

    Which of the following cells can regenerate continuously?

    <p>Surface epithelium</p> Signup and view all the answers

    What is the term for the replacement of damaged cells by connective tissue?

    <p>Healing by connective tissue</p> Signup and view all the answers

    Which of the following factors can affect repair?

    <p>Both A and B</p> Signup and view all the answers

    What is the term for the healing of a bone fracture through regeneration?

    <p>Healing by regeneration</p> Signup and view all the answers

    Which of the following tissues is repaired by connective tissue formation?

    <p>Skin dermis</p> Signup and view all the answers

    What is the difference between 1ry and 2ry intention healing?

    <p>All of the above</p> Signup and view all the answers

    Which of the following systems heals through gliosis?

    <p>Nervous system</p> Signup and view all the answers

    Study Notes

    Repair or Healing

    • Replacement of damaged tissue by new healthy tissue
    • Types of repair:
      • Regeneration: replacement of damaged cells by new cells of the same kind
      • Healing by connective tissue: replacement of damaged cells by connective tissue (fibrosis or gliosis)

    Classification of Body Cells According to Power of Regeneration

    • Labile cells: continuously dividing cells
      • Examples: surface epithelium, haematopoietic cells, lymphoid cells
    • Stable cells: quiescent cells
      • Examples: parenchymatous cells, mesenchymal cells, nerve cells, muscle cells
    • Permanent cells: non-dividing cells
      • Examples: nerve cells, muscle cells

    Factors Affecting Repair

    • Local factors: type of damaged cell, blood supply, infection, foreign body
    • Systemic factors: age, nutritional deficiency, glucocorticoids, diabetes mellitus

    Tissues Repaired by Regeneration

    • Skin (epidermis)
    • Liver cells
    • Bone fracture
    • Peripheral nerve

    Healing of Skin

    • Epidermis: healing by regeneration
    • Dermis: healing by connective tissue formation

    Healing of Nervous System

    • Central nervous system: gliosis
    • Peripheral nervous system: regeneration

    Primary and Secondary Intention Healing

    • Primary intention: shorter time, scanty granulation tissue, small scar formation, no wound contraction
    • Secondary intention: longer time, excess granulation tissue, large scar formation, wound contraction

    Abnormal Healing

    • Excess healing: keloid, hypertrophic scar
    • Defective healing: ulcer, fistula, sinus
    • Contracture

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    Description

    This quiz covers the types of repair, including regeneration and replacement of damaged cells, in the context of acute and chronic inflammation in pathology.

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