Immune System and Lymphatic System Overview
27 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of lymph nodes?

  • To produce lymphocytes and plasma cells
  • To provide a site for rapid division of B cells
  • To facilitate the entry of blood cells directly into tissues
  • To filter the blood and remove debris and pathogens (correct)

    • What is the difference between lymphoid nodules and lymph nodes?

  • Lymphoid nodules are found in the respiratory and digestive tracts, while lymph nodes are found throughout the body (correct)
  • Lymphoid nodules are sites for rapid division of B cells and plasma cells, while lymph nodes are not
  • Lymphoid nodules have a fibrous capsule, while lymph nodes do not
  • Lymphoid nodules are more vascularized than lymph nodes

    • What is the role of the spleen in the lymphatic system?

  • The spleen filters the blood and removes debris and pathogens (correct)
  • The spleen is the site of rapid division of B cells and plasma cells
  • The spleen is the entry point for afferent lymphatic vessels
  • The spleen does not play a significant role in the lymphatic system

    • What is the function of mucosa-associated lymphoid tissue (MALT)?

    <p>MALT is involved in developing immunity to oral pathogens</p> Signup and view all the answers

    Which of the following is NOT a characteristic of lymph nodes?

    <p>Entry of blood cells directly into tissues</p> Signup and view all the answers

    What is the most serious inherited type of combined immunodeficiency disease (SCID)?

    <p>It affects both T and B cells, and most patients die in the first year of life</p> Signup and view all the answers

    What is the primary mechanism by which HIV/AIDS wipes out the immune system?

    <p>It infects and kills helper T cells, leading to a weakened immune response</p> Signup and view all the answers

    Which type of hypersensitivity reaction is characterized by the rapid release of histamine from mast cells?

    <p>Type 1 hypersensitivity</p> Signup and view all the answers

    What is the primary cause of type 3 hypersensitivity reactions?

    <p>Accumulation of antigen-antibody complexes along blood vessel linings</p> Signup and view all the answers

    What is the typical timeframe for the symptoms of a type 4 hypersensitivity reaction to develop?

    <p>Within 24-72 hours</p> Signup and view all the answers

    What is the relationship between autoimmune diseases and the prevalence of infectious diseases in a population?

    <p>Autoimmune diseases are more common in populations with lower rates of infectious diseases</p> Signup and view all the answers

    Which of the following is NOT a function of the lymphatic system?

    <p>Pumping blood throughout the body</p> Signup and view all the answers

    What is the primary function of lymph nodes?

    <p>Serving as a major staging area for the development of critical immune responses</p> Signup and view all the answers

    Which of the following statements about lymph vessels is correct?

    <p>They are composed of simple squamous epithelial cells</p> Signup and view all the answers

    Which of the following is a function of T cells?

    <p>Secreting chemokines to bring other immune cells to an area</p> Signup and view all the answers

    Which of the following is NOT a barrier defense in the immune system?

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

    Where do B cells develop?

    <p>Red bone marrow</p> Signup and view all the answers

    Which of the following is NOT a function of the innate immune system?

    <p>Recognizing and responding to specific pathogens encountered before</p> Signup and view all the answers

    What is the primary role of neutrophils in the immune response?

    <p>Acting as phagocytes and cooperating with lymphocytes</p> Signup and view all the answers

    What is the primary function of perforins and granzymes in the immune response?

    <p>Inducing apoptosis in infected cells</p> Signup and view all the answers

    Which of the following is NOT a characteristic of chronic inflammation?

    <p>A short-term response to injury</p> Signup and view all the answers

    What is the primary function of helper T cells (Th cells) in the immune response?

    <p>Enhancing the immune response by secreting cytokines</p> Signup and view all the answers

    What is the primary function of regulatory T cells in the immune system?

    <p>Suppressing other T cell immune responses</p> Signup and view all the answers

    Which of the following antibody classes is primarily involved in allergic reactions and anaphylaxis?

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

    What is the primary difference between active and passive immunity?

    <p>Active immunity is acquired through exposure to pathogens, while passive immunity involves the transfer of antibodies</p> Signup and view all the answers

    Which of the following is the primary mechanism by which viruses are fought by the immune system?

    <p>Cytotoxic T cells, interferons, and natural killer cells</p> Signup and view all the answers

    What is the primary role of seroconversion in the immune response?

    <p>Monitoring the levels of antibodies and pathogens in the blood</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser