This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
Fibroblast in healing wound is derived from 
Select and explain. 
A. Local mesenchyme, B. Epithelium, C. Endothelium, D. Blood borne
A: Local mesenchyme
Answer: A: Local mesenchyme 
Explanation: Fibroblasts are specialized cells that differentiate from resting mesenchymal cells in connective tissue The primary function of fibroblasts is to synthesize collagen. Sabiston 20th edition Pg 137