Immune Response: Humoural vs Cell-Mediated Immunity
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Questions and Answers

What is a characteristic of a cell-mediated immunity (CMI) response?

  • Attacks the invader with antibodies released into the blood and lymph
  • Results in anaphylactic reactions
  • Peaks at 24– 48 h following exposure to the antigen (correct)
  • Releases interferons to interfere with viral replication

    • What is a symptom of an anaphylactic reaction?

  • Mucosal swelling
  • Dilated pupils
  • Pruritus
  • All of the above (correct)

    • What is a common allergen responsible for atopic reactions?

  • Food particles
  • Environmental allergens (correct)
  • Latex
  • Pollen

    • What is the primary function of interferons?

    <p>To interfere with viral replication</p> Signup and view all the answers

    What is a distinguishing feature of cell-mediated immunity compared to humoral immunity?

    <p>Involves specific antigen recognition</p> Signup and view all the answers

    What is angioedema?

    <p>A transient subcutaneous or submucosal swelling</p> Signup and view all the answers

    What type of immunity is present at birth?

    <p>Innate immunity</p> Signup and view all the answers

    What is the primary function of the immune system's defense mechanism?

    <p>Attack foreign antigens and pathogens</p> Signup and view all the answers

    What is the result of active immunity?

    <p>Producing antibodies and sensitized lymphocytes as a result of foreign substance entering the body</p> Signup and view all the answers

    What is the primary function of the immune system's surveillance mechanism?

    <p>Recognizing and destroying foreign cells</p> Signup and view all the answers

    What is the role of antigens in the immune response?

    <p>To stimulate an immune response</p> Signup and view all the answers

    What is the primary function of the immune system's homeostasis mechanism?

    <p>Digesting and removing damaged cellular substances</p> Signup and view all the answers

    What is the term for the type of rejection that occurs within minutes to hours after transplantation?

    <p>Hyperacute rejection</p> Signup and view all the answers

    What is the primary function of immuno-suppressive therapy in organ transplantation?

    <p>To prevent the immune system from rejecting the graft</p> Signup and view all the answers

    What is the term for the type of rejection that occurs months to years after transplantation and is often irreversible?

    <p>Chronic rejection</p> Signup and view all the answers

    What is the term for the condition that occurs when an immuno-incompetent client receives a transfusion or transplant with immuno-competent cells?

    <p>Graft-versus-host disease</p> Signup and view all the answers

    Which of the following medications is NOT commonly used in immuno-suppressive therapy?

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

    What is the term for the type of rejection that occurs days to months after transplantation?

    <p>Acute rejection</p> Signup and view all the answers

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