Question:
Kupffer's cells are specialized macrophages found in the:
Kupffer's cells are specialized macrophages found in the:
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Remember the names of key tissue-specific macrophages for competitive exams:
- Liver = Kupffer's cells
- Lungs = Alveolar macrophages
- Brain = Microglia
- Kidney = Mesangial cells
- Liver = Kupffer's cells
- Lungs = Alveolar macrophages
- Brain = Microglia
- Kidney = Mesangial cells
Updated On: Jun 3, 2026
- Small intestine
- Thyroid gland
- Liver
- Pancreas
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
The question asks to identify the organ in the human body where specialized tissue-resident macrophages known as Kupffer's cells are located.
Step 2: Detailed Explanation:
• The body contains a network of phagocytic cells distributed throughout different tissues, collectively known as the Mononuclear Phagocyte System (or Reticuloendothelial System).
• While monocytes circulate in the blood, they differentiate into specialized tissue-resident macrophages once they migrate into specific organs.
• Kupffer's cells (also known as stellate sinusoidal macrophages) are specialized, active macrophages located inside the lumen of the liver sinusoids.
• They are anchored to the sinusoidal endothelial cells, where they are constantly exposed to blood flowing from the portal vein.
• Their primary physiological functions include:
- Phagocytizing pathogens, foreign particles, and cellular debris carried by blood from the gastrointestinal tract.
- Removing senescent (aged) and damaged red blood cells (erythrocytes) from circulation, facilitating the recycling of iron.
- Participating in immune signaling and inflammatory responses within the liver tissue.
• Other tissue-specific macrophages include microglia in the brain, alveolar macrophages (dust cells) in the lungs, and histiocytes in connective tissue.
Step 3: Final Answer:
Kupffer's cells are specialized macrophages found in the liver.
The question asks to identify the organ in the human body where specialized tissue-resident macrophages known as Kupffer's cells are located.
Step 2: Detailed Explanation:
• The body contains a network of phagocytic cells distributed throughout different tissues, collectively known as the Mononuclear Phagocyte System (or Reticuloendothelial System).
• While monocytes circulate in the blood, they differentiate into specialized tissue-resident macrophages once they migrate into specific organs.
• Kupffer's cells (also known as stellate sinusoidal macrophages) are specialized, active macrophages located inside the lumen of the liver sinusoids.
• They are anchored to the sinusoidal endothelial cells, where they are constantly exposed to blood flowing from the portal vein.
• Their primary physiological functions include:
- Phagocytizing pathogens, foreign particles, and cellular debris carried by blood from the gastrointestinal tract.
- Removing senescent (aged) and damaged red blood cells (erythrocytes) from circulation, facilitating the recycling of iron.
- Participating in immune signaling and inflammatory responses within the liver tissue.
• Other tissue-specific macrophages include microglia in the brain, alveolar macrophages (dust cells) in the lungs, and histiocytes in connective tissue.
Step 3: Final Answer:
Kupffer's cells are specialized macrophages found in the liver.
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