This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc. (W.B.C), Subject name: Pathology
Macrophages are found in: 
Select and explain. 
A. Phase of scar formation, B. Phase of repair, C. Late phase of inflammation, D. Early phase of inflammation
C: Late phase of inflammation
Answer: C: Late phase of inflammation 
Explanation: Ans. is 'c' i.e. late phase of inflammation Neutrophils predominate in the early phase of inflammation (the phase occuring within 24 hrs) whereas macrophages enter the area in late phase of inflammation ie. after 24-48 hrs. Neutrophils remain predominant cells for upto 72 hrs, after which the macrophages take over as predominant cell.Lymphocytes and plasma cells are also seen along with macrophages in the acute inflammatory response.