Macrophages known as Kupffer cells are found in this organ.

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Multiple Choice

Macrophages known as Kupffer cells are found in this organ.

Explanation:
Kupffer cells are the liver’s resident macrophages, lining the walls of hepatic sinusoids. They filter blood that comes from the gut via the portal vein, phagocytosing bacteria and debris, clearing aged red blood cells, and helping with immune surveillance. That’s why they’re specifically associated with the liver. Other organs have macrophages too—microglia in the brain, alveolar macrophages in the lung, and macrophages in the spleen—but those are not called Kupffer cells.

Kupffer cells are the liver’s resident macrophages, lining the walls of hepatic sinusoids. They filter blood that comes from the gut via the portal vein, phagocytosing bacteria and debris, clearing aged red blood cells, and helping with immune surveillance. That’s why they’re specifically associated with the liver. Other organs have macrophages too—microglia in the brain, alveolar macrophages in the lung, and macrophages in the spleen—but those are not called Kupffer cells.

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