Necrosis
Everything on necrosis
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Time limit: 7 minutes
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Question 1
Multiple choiceWhat is the primary cause of necrosis?
Explanation
Necrosis is primarily caused by a lack of blood supply to tissues, leading to cell death.
Question 2
Multiple choiceWhich of the following is NOT a type of necrosis?
Explanation
Enzymatic necrosis is not a standard classification of necrosis; the recognized types include coagulative, liquefactive, and caseous.
Question 3
Multiple choiceWhich type of necrosis is characterized by a cheese-like appearance?
Explanation
Caseous necrosis is characterized by a crumbly, cheese-like appearance and is often seen in tuberculosis infections.
Question 4
Multiple choiceWhat is a hallmark sign of liquefactive necrosis?
Explanation
Liquefactive necrosis often involves the formation of pus due to the accumulation of dead leukocytes and cellular debris.
Question 5
Multiple choiceWhich necrosis type is primarily associated with ischemic injury?
Explanation
Coagulative necrosis is the result of ischemia, commonly seen after heart attacks or in other tissues deprived of blood flow.
Question 6
Multiple choiceWhich process is most likely to trigger secondary necrosis after primary necrosis?
Explanation
Inflammation can lead to secondary necrosis by further damaging neighboring tissues after primary necrosis occurs.
Question 7
Multiple choiceWhat type of necrosis is often seen in autoimmune diseases?
Explanation
Fibrinoid necrosis is associated with autoimmune diseases and involves the deposition of fibrin-like protein in vessel walls.
Question 8
Multiple choiceWhich of the following factors is most likely to induce necrosis?
Explanation
Reduced oxygen levels (hypoxia) can lead to necrotic changes in tissues due to inadequate energy production.
Question 9
Multiple choiceWhat morphological change typically occurs in cells undergoing necrosis?
Explanation
Necrosis typically causes cell swelling, leading to the rupture of the cell membrane and uncontrolled release of cell contents.
Question 10
Multiple choiceIn necrosis, which cellular component is most damaged?
Explanation
Necrosis predominantly involves damage to the plasma membrane, resulting in loss of cellular integrity.
Question 11
Multiple choiceWhich type of necrosis is often the result of bacterial infection?
Explanation
Liquefactive necrosis is frequently associated with bacterial infections that lead to tissue destruction and pus formation.
Question 12
Multiple choiceWhat is commonly seen in necrotic tissues during histological examination?
Explanation
Histological examination of necrotic tissues often shows cytoplasmic eosinophilia, indicating damage to the cells.
Question 13
Multiple choiceWhich statement about necrosis is true?
Explanation
Necrosis is characterized by cell death that invariably triggers an inflammatory response, often causing damage to surrounding tissues.
Question 14
Multiple choiceWhat is the primary difference between necrosis and apoptosis?
Explanation
The primary difference is that necrosis typically results in inflammation and tissue damage, while apoptosis is a programmed cell death process that usually does not trigger inflammation.
Question 15
Multiple choiceWhich of the following best describes the primary mechanism of necrosis in tissues?
Explanation
Necrosis is primarily caused by irreversible damage to cells often due to lack of blood supply, which leads to cell death. This distinguishes it from apoptosis, which is a controlled, programmed process of cell death.