macrophage

• 一种大型吞噬细胞，存在于组织中，部分固定、部分在血液中循环，在免疫系统中发挥关键作用，能吞噬并消化病原体和细胞残骸。

A large phagocytic cell found in tissues, some of which are fixed while others circulate in the bloodstream, playing a key role in the immune system by engulfing and digesting pathogens and debris.

1. Immune cellC1formalmedical

   A type of large white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process called phagocytosis.

   免疫细胞

   • Macrophages play a crucial role in the body's first line of defense against infection.
   • When tissue is damaged, macrophages migrate to the site to clear away dead cells.
   • Some macrophages are fixed in tissues like the liver, while others circulate in the blood.