Bacterial Meningitis Pathogenesis
10 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 bacterial component inhibits neutrophil phagocytosis and resists classical complement‐mediated bactericidal activity?

  • Neisserial surface protein A
  • Outer membrane proteins factor H‐binding protein
  • Polysaccharide capsule (correct)
  • Pneumococcal surface proteins
  • Which bacterial component may enhance bloodstream survival by facilitating intravascular replication?

  • Neisserial surface protein A
  • Polysaccharide capsule (correct)
  • Toxin pneumolysin
  • Outer membrane proteins factor H‐binding protein
  • Which pathogen mentioned in the text is specifically known for the activation of the alternate complement pathway through its capsular polysaccharide?

  • E. coli
  • H. influenzae
  • N. meningitidis
  • S. pneumoniae (correct)
  • Which component forms the Blood–Brain Barrier, regulating the passage of molecules and protecting the brain from microorganisms and toxins?

    <p>Polysaccharide capsule</p> Signup and view all the answers

    Which encapsulated pathogen is mentioned as one of the most common meningeal pathogens in the text?

    <p>N. meningitidis</p> Signup and view all the answers

    Which outer membrane protein is known for binding to factor H, evading host immune responses?

    <p>Pneumococcal surface proteins</p> Signup and view all the answers

    Which bacterial component is highlighted for preferentially binding to the organism and blocking the beneficial effects of certain antibodies?

    <p>Polysaccharide capsule</p> Signup and view all the answers

    What type of antibodies do bacteria like N. meningitidis block, according to the text?

    <p>IgG and IgM antibodies</p> Signup and view all the answers

    Which host defense mechanisms counteract the antiphagocytic effects of the bacterial capsule?

    <p>Activation of the alternate complement pathway</p> Signup and view all the answers

    What do brain microvascular endothelial cells, astrocytes, and pericytes collectively form in the text?

    <p>Blood–Brain Barrier</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Browser