Cellular Injury Principles Quiz

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Questions and Answers

What is the final electron acceptor in the electron transport chain of oxidative phosphorylation?

  • Oxygen (correct)
  • Glucose
  • Carbon dioxide
  • Hydrogen peroxide

Which type of cells are highly susceptible to ischemic injury?

  • Cardiac muscle cells
  • Skeletal muscle cells
  • Liver cells
  • Neurons (correct)

What is the main cause of hypoxemia?

  • Low partial pressure of oxygen in the blood (correct)
  • Increased oxygen-carrying capacity of blood
  • High carbon dioxide levels in the blood
  • High partial pressure of oxygen in the blood

What is the key factor that leads to cellular injury in hypoxia?

<p>Lack of ATP production (D)</p> Signup and view all the answers

What is the definition of ischemia?

<p>Decreased blood flow through an organ (B)</p> Signup and view all the answers

What are the morphologic hallmarks of cell death?

<p>Nuclear condensation, fragmentation, and dissolution (A)</p> Signup and view all the answers

What are the two mechanisms of cell death?

<p>Necrosis and apoptosis (A)</p> Signup and view all the answers

What is the characteristic feature of coagulative necrosis?

<p>Preservation of cell shape and organ structure by coagulation of proteins (A)</p> Signup and view all the answers

Which condition is associated with liquefactive necrosis?

<p>Brain infarction (D)</p> Signup and view all the answers

What is gangrenous necrosis characterized by?

<p>Resemblance to mummified tissue (dry gangrene) (C)</p> Signup and view all the answers

Which type of necrosis is characteristic of brain infarction?

<p>Liquefactive necrosis (B)</p> Signup and view all the answers

What is the defining feature of coagulative necrosis?

<p>Preservation of cell shape and organ structure (C)</p> Signup and view all the answers

Which condition is associated with red infarction?

<p>Pulmonary infarction (A)</p> Signup and view all the answers

What is the main cause of gangrenous necrosis?

<p>Underlying pathologic process (A)</p> Signup and view all the answers

What is the key characteristic of apoptosis?

<p>Physiologic process (C)</p> Signup and view all the answers

Which type of necrosis is associated with acute inflammation?

<p>Liquefactive necrosis (C)</p> Signup and view all the answers

What is the defining feature of coagulative necrosis?

<p>Preservation of cell shape and organ structure (A)</p> Signup and view all the answers

What is the characteristic of gangrenous necrosis?

<p>Resembles mummified tissue (A)</p> Signup and view all the answers

Which type of necrosis is characteristic of pancreatitis?

<p>Liquefactive necrosis (D)</p> Signup and view all the answers

What is the primary cause of necrosis?

<p>Underlying pathologic process (A)</p> Signup and view all the answers

Which type of necrosis is characteristic of brain infarction?

<p>Liquefactive necrosis (A)</p> Signup and view all the answers

What is the characteristic feature of coagulative necrosis?

<p>Firm necrotic tissue with preserved cell shape and organ structure (C)</p> Signup and view all the answers

Which type of necrosis is characteristic of ischemic infarction of any organ except the brain?

<p>Coagulative necrosis (B)</p> Signup and view all the answers

Which mechanism of cell death is associated with acute inflammation?

<p>Necrosis (D)</p> Signup and view all the answers

What are the morphologic hallmarks of cell death?

<p>Nuclear condensation, fragmentation, and dissolution (A)</p> Signup and view all the answers

Which type of necrosis is characteristic of abscess formation?

<p>Liquefactive necrosis (B)</p> Signup and view all the answers

What is the main difference between coagulative and liquefactive necrosis?

<p>Firm vs. liquefied necrotic tissue (B)</p> Signup and view all the answers

Which type of necrosis resembles mummified tissue?

<p>Gangrenous necrosis (D)</p> Signup and view all the answers

What are the two mechanisms of cell death?

<p>Necrosis and apoptosis (C)</p> Signup and view all the answers

Which type of necrosis is characteristic of ischemic infarction of the brain?

<p>Coagulative necrosis (C)</p> Signup and view all the answers

Which type of necrosis is characteristic of ischemia of the lower limb and GI tract?

<p>Gangrenous necrosis (B)</p> Signup and view all the answers

What is the characteristic feature of coagulative necrosis?

<p>Necrotic tissue that remains firm (A)</p> Signup and view all the answers

What is the primary cause of necrosis?

<p>Low ATP disrupting key cellular functions (B)</p> Signup and view all the answers

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