Here PMN's that are marginated along the venule wall (arrow) are squeezing through the basement membrane (the process of diapedesis) and spilling out into extravascular space.
图示边集于小静脉壁
粒细胞（箭头所示）正挤
基底膜（渗），游走到血管外。
,没有血管Here PMN's that are marginated along the venule wall (arrow) are squeezing through the basement membrane (the process of diapedesis) and spilling out into extravascular space.
图示边集于小静脉壁粒细胞（箭头所示）正挤基底膜（渗），游走到血管外。
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