Phases of Wound Healing
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Questions and Answers

Which phase of wound healing involves the formation of granulation tissue and collagen formation?

  • Proliferation (correct)
  • Maturation
  • Haemostasis
  • Inflammation
  • What happens immediately after an injury in the haemostasis phase of wound healing?

  • Platelet aggregation (correct)
  • Release of cytokines
  • Fibrin formation
  • Remodeling of collagen
  • What is the first thing that happens in the clotting cascade during haemostasis?

  • Platelet aggregation (correct)
  • Release of cytokines
  • Fibrin formation
  • Remodeling of collagen
  • Which cells are involved in platelet aggregation during haemostasis?

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

    What is the final phase of wound healing that involves the remodeling of collagen?

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

    Which type of collagen is replaced by type I mature collagen during the maturation phase of wound healing?

    <p>Type III immature collagen</p> Signup and view all the answers

    What is one of the patient factors that can affect wound healing?

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

    Which factor can delay all stages of healing?

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

    What can radiation treatment lead to during wound healing?

    <p>Tissue fibrosis and vascular scarring</p> Signup and view all the answers

    Which component of the extracellular matrix undergoes changes during the maturation phase of wound healing?

    <p>Type I mature collagen</p> Signup and view all the answers

    During the inflammatory stage, why do we get vasodilation?

    <p>To bring in cytokines and inflammatory mediators</p> Signup and view all the answers

    What cells are attracted to the cytokines in the platelet clot during the inflammatory stage?

    <p>Neutrophils and macrophages</p> Signup and view all the answers

    What gives granulation tissue its shiny and red appearance?

    <p>New blood vessels</p> Signup and view all the answers

    What is the role of myofibroblasts in the proliferation phase?

    <p>To promote wound contraction</p> Signup and view all the answers

    Why is it important to measure or take pictures of the wound during the proliferation 2 phase?

    <p>To evaluate the deficit reduction</p> Signup and view all the answers

    Which phase of wound healing involves the formation of granulation tissue and collagen formation?

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

    What is the role of myofibroblasts in the proliferation phase?

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

    What is the first thing that happens in the clotting cascade during haemostasis?

    <p>Platelet aggregation</p> Signup and view all the answers

    Which type of collagen is replaced by type I mature collagen during the maturation phase of wound healing?

    <p>Type III immature collagen</p> Signup and view all the answers

    What can affect wound healing in patients?

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

    Which factor can delay all stages of healing?

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

    What is the role of myofibroblasts in the proliferation phase of wound healing?

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

    Which phase of wound healing is characterized by the formation of granulation tissue and the proliferation of fibroblasts and blood vessels?

    <p>Proliferation (repair phase)</p> Signup and view all the answers

    What type of cells are responsible for destroying bacteria and devitalized necrotic tissue during the inflammatory stage of wound healing?

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

    What is the purpose of the platelet plug in wound healing?

    <p>To prevent blood loss</p> Signup and view all the answers

    During which phase of wound healing does the formation of granulation tissue and collagen occur?

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

    What is the first phase of wound healing that occurs immediately after an injury?

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

    What is the role of platelet aggregation during haemostasis?

    <p>To activate the clotting cascade</p> Signup and view all the answers

    What happens during the maturation phase of wound healing?

    <p>Remodeling of collagen</p> Signup and view all the answers

    Which phase of wound healing involves the release of cytokines from platelets?

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

    Which type of collagen is replaced by type I mature collagen during the maturation phase of wound healing?

    <p>Type III immature collagen</p> Signup and view all the answers

    What is one of the patient factors that can affect wound healing?

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

    What factor can delay all stages of healing?

    <p>Concurrent treatment</p> Signup and view all the answers

    What is the role of myofibroblasts in the proliferation phase of wound healing?

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

    What can radiation treatment lead to during wound healing?

    <p>Tissue fibrosis and vascular scarring</p> Signup and view all the answers

    During the inflammatory stage of wound healing, which cells are responsible for destroying bacteria and devitalized necrotic tissue?

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

    What is the main purpose of the platelet plug in wound healing?

    <p>To prevent blood loss</p> Signup and view all the answers

    Which phase of wound healing involves the formation of granulation tissue and the proliferation of fibroblasts and blood vessels?

    <p>Proliferation (repair) phase</p> Signup and view all the answers

    What gives granulation tissue its shiny and red appearance?

    <p>Blood vessels</p> Signup and view all the answers

    What type of cells contract and cause wound contraction during the proliferation 2 phase of wound healing?

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

    • The first phase of wound healing is ______ and inflammation – continues for a couple of days.

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

    • During haemostasis, the clotting cascade consists of ______ and extrinsic factors.

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

    • Platelet aggregation during haemostasis is stabilized by ______ formation.

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

    • During the inflammatory stage, cytokines in the platelet clot attract the white blood cells. Initially it is neutrophils but then ______.

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

    • The fibroblasts proliferate and they are responsible for making the new extracellular matrix, elastin, and collagen ______.

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

    • The wound contraction and new epithelial tissue we should start to see the deficit ______ in this phase.

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

    You may not be able to do anything about ______ but you may be able to reduce the dose

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

    This leads to tissue fibrosis and vascular scarring

    <p>radiation treatment</p> Signup and view all the answers

    Wound factors can be the location of the ______, the tension on the ______, the movements of the ______, the local blood supply of the ______.

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

    Age, comorbidities, and nutrition status are examples of ______ factors that can affect wound healing.

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

    Study Notes

    Wound Healing Phases

    • The proliferation phase involves the formation of granulation tissue and collagen formation.
    • The final phase of wound healing is the remodeling phase, which involves the remodeling of collagen.

    Haemostasis Phase

    • Immediately after an injury, the haemostasis phase involves platelet aggregation and clotting cascade.
    • The first thing that happens in the clotting cascade is the release of tissue factor.
    • Platelets aggregate during haemostasis, facilitated by thromboxane A2.

    Inflammatory Stage

    • Vasodilation occurs during the inflammatory stage due to the release of histamine from platelets.
    • Cytokines in the platelet clot attract white blood cells, initially neutrophils and then macrophages.

    Proliferation Phase

    • Myofibroblasts play a crucial role in the proliferation phase, causing wound contraction.
    • Granulation tissue gets its shiny and red appearance due to the proliferation of new blood vessels.
    • It's essential to measure or take pictures of the wound during the proliferation 2 phase to track progress.

    Maturation Phase

    • Type III collagen is replaced by type I mature collagen during the maturation phase.
    • The extracellular matrix undergoes changes during the maturation phase.
    • Radiation treatment can lead to tissue fibrosis and vascular scarring during wound healing.

    Factors Affecting Wound Healing

    • Patient factors that can affect wound healing include age, comorbidities, and nutrition status.
    • Radiation treatment can delay all stages of healing.
    • Wound factors such as location, tension, movement, and local blood supply can also affect wound healing.

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    Description

    Test your knowledge on the phases of wound healing and understand the importance of proper management in the healing process. Explore the stages of haemostasis, inflammation, and platelet aggregation.

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