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83 Cards in this Set
- Front
- Back
- 3rd side (hint)
What is the ultimate goal of Inflammation and repair? |
Restore function and promoting regeneration of normal tissue structure |
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Treat inflammatory conditions. Three treatment types. |
Physical agents (modalities) Therapeutic exercise Manual techniques |
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What are the three phases of Inflammation and healing? |
Inflammation phase Proliferation phase Maturation phase |
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The phases of Inflammation and healing. What is the purpose of the Inflammation phase and when does it occur? |
Prepares wound for healing Days 1 to 6 |
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Phases of Inflammation and healing. What is the purpose of the proliferation phase and how long does it last? |
Rebuilds damaged structures and strengthens the wound Days 3 to 20 |
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Phases of Inflammation and healing. What is the purpose of the maturation phase and when does it occur? |
Modifies the scar tissue into its mature form Day 9 onward |
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Which phase of Inflammation begins when the normal physiology of tissue is altered by disease or trauma? |
Phase I: Inflammation |
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Which phase of Inflammation is necessary for healing? |
Phase I: Inflammation |
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Which phase of Inflammation can become inappropriate, such as in autoimmune diseases, causing damage and excessive scarring? |
Phase I: Inflammation |
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What are the five Cardinal signs of Inflammation? |
Heat Redness Swelling Pain Loss of function |
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How is bleeding stopped? |
Hageman factor (clotting factor XII) |
factor |
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What cell converts into macrophages in the tissue space during the cellular response? |
Monocytes |
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Which leukocyte converts to macrophages and predominates for 24 to 48 hours after injury? |
Monocyte |
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Which cell is most effective when oxygen is present and engulfs large debris? |
Macrophage |
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Which cell activates cells to make antibodies during the immune response? |
Macrophage |
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What are the four simultaneous processes that occur during the proliferation phase? |
Epithelialization Collagen production Wound contraction Neovascularization |
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What makes collagen? |
Fibroblasts |
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What is the purpose of epithelialization? (2) |
Re-establish epidermis Provide protection |
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How do fibroblasts align themselves to the capillaries? |
Perpendicular |
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Collagen production day 7. (2) |
Significant increase in collagen Tensile strength of injured area increases |
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Collagen production day 12. |
Type 1 collagen replaces type 3 |
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Collagen production day 21. |
Maximal collagen production 20% wound strength |
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Collagen production six weeks. |
80% of long term strength |
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Which phase is the longest phase of healing? |
Maturation phase |
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What decreases during the maturation phase? (5) |
Fibroblasts Macrophages Myofibroblasts Capillaries Water content |
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What is the goal of the maturation phase? |
Restore prior function of tissue |
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Examples of type 1 collagen. (4) |
Bone Skin Tendon Mature scars |
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Example of type 2 collagen. |
Cartilage |
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Examples of type 3 collagen. (3) |
Gastrointestinal tract Uterus Blood vessels |
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Is type 1 or type 3 collagen stronger? |
Type 1 |
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Increased collagen production is due to inhibition of... |
Lysis |
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Keloid and hypertrophic scarring is due to... |
Inhibition of lysis increasing collagen production. |
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How long does collagen synthesis and lysis last after an injury? |
12 to 24 months |
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What does it mean when the scar is more red than other tissue? |
Remodeling is still occurring |
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What are the two theories regarding collagen orientation? |
Induction theory Tension theory |
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Can skeletal muscle cells proliferate? |
No |
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What are the four stages of bone healing? |
Inflammation Soft callus Hard callus Bone remodeling |
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What is impaction? |
Dissipation of energy from an insult |
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Induction is the least understood bone healing stage. What is it?
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Cells with osteogenic properties activate |
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What four things happen during the inflammation stage of bone healing? |
Fibrous union Fracture hematoma Oxygen tension decrease pH decrease |
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What six things happen during the soft callus stage of bone healing? |
Increased vascularity Increased cell proliferation Capillary growth pH normalizes Hematoma has fibrous tissue added Osteoclasts remove bone fragments |
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What happens during the hard callus stage of bone healing? |
Fracture healing |
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When does the remodeling stage of bone healing begin and end? |
Begins when fracture is healed Ends when bone returned to normal state |
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What two things happen during remodeling stage of bone healing? |
Fibrous bone converts to lamellar bone Medullary canal revised |
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When does the soft callus stage begin and end? |
Begins when pain and swelling subside Ends when bony fragments are united by fibrous tissue |
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When does the hard callus stage begin and end? |
Begins when hard callus covers ends of fracture Ends when new bone unites with fragments |
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When does the inflammation stage of bone healing begin and end? |
Begins shortly after impact Ends with fibrous union |
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Why does cartilage have a limited ability to heal? (3) |
Lacks lymphatics, blood vessels, and nerves |
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What are some adjuncts to promote wound healing? (5) |
Negative-pressure wound therapy Hydrotherapy Biological dressings containing silver Silicon-based wound dressings Immunonutrition |
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What four systemic factors affect wound healing? |
Age Disease Medication Nutrition |
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What are some local factors that affect wound healing? (5) |
The injury itself Infection Vascular supply External forces (modalities) Movement |
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The simultaneous progression of active inflammation, tissue destruction, and healing. |
Chronic inflammation |
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Active inflammation follows acute inflammation and can be the result of: |
Cumulative trauma or other interference with normal healing |
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Tissue destruction related to chronic inflammation may be the result of: |
Immune response or autoimmune disease |
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If acute inflammatory phase lasts longer than 4 weeks, this is known as: |
Subacute inflammation |
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How long does chronic inflammation last? |
Months to years |
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Increased fibroblast proliferation, which increases collagen production and ultimately increases scar tissue and adhesion formation is a result of: |
Chronic inflammation |
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What do humoral and neural mediators do?
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Control inflammatory phase |
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What two types of cells predominate immediately after injury? |
Platelets and neutrophils |
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Vascular response of inflammation: What happens during vasoconstriction? |
Damaged blood vessels constrict to minimize blood loss. Mediated by norepinephrine. Lasts 5 to 10 minutes. |
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Vascular response of inflammation: What happens during vasodilation? |
Blood vessels near injury dilate and increase permeability causing edema. Mediated by histamine, bradykinin, prostaglandins, serotonin, hageman factor, and complement fractions. Leukocytes attracted to histamine via chemotaxis. Lasts up to an hour. |
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Vascular response of inflammation: What happens when Hageman Factor touches negatively charged surface of endothelial lining of damaged vessels? |
Activates coagulation system to stop bleeding. Vasoconstriction and increased vascular permeability. Produces kallikrein and plasmin. Plasmin activates more Hageman factor. Complement system activates. |
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Hemostatic response of inflammation: What happens during this response? |
Immediately after injury, platelets release fibrin to stimulate clotting to control blood loss |
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Cellular response of inflammation: What happens during this response? |
Monocytes convert to macrophages and predominate for 24 to 48 hours after injury |
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Immune response of inflammation: What happens during this response? |
Macrophages activate cells to make antibodies. Foreign antigens presented to T-cells. T-cells activate B-cells. Phagocytosis occurs. |
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What does plasmin do? |
Augments vascular permeability and activates Hageman factor |
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What are kinins? |
Peptides that are inflammatory substances derived from plasma and trigger the immune system |
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What are prostaglandins? |
Produced by nearly all cells in body and released when cell membrane is damaged |
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What are thought to be responsible for sensitizing pain receptors and hyperalgesia? |
Pro-inflammatory prostaglandins |
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What is transudate? |
Fluid that first forms edema Has electrolytes and water |
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What is exudate? |
Cloudy fluid with high lipid and cellular debris content |
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Leukocyte migration from blood vessels into perivascular tissues is known as: |
Emigration |
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Epithelialization of proliferation phase: What happens during epithelialization? |
Basal cells detach from basement membrane. Cells migrate toward the wound. Contact inhibition occurs. Basal cells proliferate.
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What is healing by primary intention? |
Wound can heal without wound contraction |
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What is healing by secondary intention? |
Wound must undergo wound contraction to heal |
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What is healing by delayed primary intention? |
Later suturing or skin grafting can reduce wound contraction |
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Neutrophils squeezing through vessel walls after margination is known as: |
Diapedesis |
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Sequence of events in the journey of neutrophils in the wound transmigrating across the capillary endothelial cell walls is known as: |
Extravasation |
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Collagen production of the proliferation phase: What happens during collagen production? |
Fibroblasts make collagen and align perpendicular to capillaries. Cross-linking strengthens injury. Granulation tissue is formed. Type 3 collagen converts to Type 1 collagen. Strength of wound reaches 80% strength. |
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Wound contraction of the proliferation phase: What happens during wound contraction? |
Contraction starts at day 5 and peaks day 14. Wound is pulled together by myofibroblasts. |
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Neovascularization of the proliferation phase: What happens during neovascularization? |
Angiogenisis results in development of new blood supply |
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The scar attempts to mimic the characteristics of the tissue it is healing is known as: |
Induction theory |
theory |
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Internal and external stresses placed on the injury during the maturation phase determine the final tissue structure is known as: |
Tension theory |
theory |