Understanding Pathology and Disease Concepts
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Questions and Answers

What is the term used to describe the process where an arthropod vector carries a pathogen outside of its body?

  • Parenteral route
  • Passive transport (correct)
  • Active transport
  • Biological vector transmission
  • Which term describes the enhanced ability of a pathogen to cause infection?

  • Adherence
  • Toxigenicity
  • Virulence (correct)
  • Pathogenicity
  • What is the term used to describe the non-oral entry of pathogens directly into tissue or the bloodstream?

  • Coagulase
  • Adherence
  • Parenteral route (correct)
  • Toxemia
  • Which enzyme helps a bacterium stop blood flow, preventing host defenses from reaching it?

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

    What is the term used to describe the presence of a toxin in the bloodstream?

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

    What is the term used to describe a chemically modified toxin that is no longer toxic?

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

    Which term describes the ability of pathogens to attach to host tissues or cells?

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

    What is the term used to describe an antibody against a toxin?

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

    Which term refers to a substance that acts as an antigen and can induce an immune response?

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

    What is the study of the cause of a disease?

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

    Which type of disease accompanies a specific group of signs and symptoms?

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

    What do you call an acute infection that causes the initial illness?

    <p>Primary infection</p> Signup and view all the answers

    Which term describes pathogens limited to a small area of the body?

    <p>Local infection</p> Signup and view all the answers

    What is the mode of transmission that requires close association between infected person and susceptible host?

    <p>Direct contact transmission</p> Signup and view all the answers

    Which term refers to the continual sources of infection?

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

    What is a disease that is spread from one host to another known as?

    <p>Communicable disease</p> Signup and view all the answers

    Which of the following describes the role of commensal microbes?

    <p>One organism benefits while the other is unaffected</p> Signup and view all the answers

    What is the process called when normal microbiota compete with pathogens, leading to decreased populations of pathogenic bacteria?

    <p>Competitive exclusion</p> Signup and view all the answers

    Which type of granulocyte is involved in allergic responses?

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

    What is the term used to describe the attachment of a phagocyte to the surface of a pathogen?

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

    Which type of granulocyte is considered the 'first responder' in the early stages of infection?

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

    What is the term used to describe the release of chemical signals (cytokines) by a pathogen to attract phagocytes?

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

    Which of the following statements about capsules in pathogens is true?

    <p>Capsules make pathogens too big to be engulfed by phagocytes</p> Signup and view all the answers

    What is the role of monocytes in the host defense system?

    <p>They travel in the blood and mature into macrophages in tissues where they become phagocytic cells</p> Signup and view all the answers

    What is the function of mycolic acid in pathogens?

    <p>It is a waxy lipid that inhibits phagocytosis</p> Signup and view all the answers

    What is the function of Opsonization in the immune system?

    <p>Promotes attraction of phagocytes to pathogens</p> Signup and view all the answers

    Which type of immunity fights invaders outside of the cell?

    <p>Humoral Immunity</p> Signup and view all the answers

    What is the main function of Regulatory T cells?

    <p>Suppress the immune response when not needed</p> Signup and view all the answers

    Which cells are involved in cell-mediated immunity by attacking intracellular antigens?

    <p>Cytotoxic T cells</p> Signup and view all the answers

    What is the role of Antibodies in the immune system?

    <p>Protective proteins against specific antigens</p> Signup and view all the answers

    Which process creates a membrane attack complex that forms a hole in the pathogen's cell membrane?

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

    What is the function of Helper T cells in the immune response?

    <p>Activate B cells to produce antibodies</p> Signup and view all the answers

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