This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammation & Repair, Subject name: Pathology
Transmigration of WBC across the endothelium is called 
Select and explain. 
A. Margination, B. Rolling, C. Pavementing, D. Diapedesis
D: Diapedesis
Answer: D: Diapedesis 
Explanation: Ans. (d) Diapedesis(Ref: Robbins 9th/pg 76-77)Migration of the leukocytes through the endothelium, is called transmigration or diapedesis.It is mediated by PECAM-1