This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'True about wound healing \nSelect and explain. \nA. Infected wound heal by primary intention, B. Deep dermal wound heal by scar formation, C. Wound contraction is found in healing by secondary intention, D. More intense inflammatory response in primary intention', 'role': 'user'}, {'content': 'Answer: B \nExplanation: • Epidermal appendages do not regenerate\n• There remains a connective tissue scar in place of the mechanically efficient meshwork of collagen in the unwounded dermis.\n• Very superficial wounds: Little scar formation.\n• In marked contrast with wound healing in adults, fetal cutaneous wounds heal without scar formation, up to mid-gestation age in some animals. These wounds show little inflammation and practically no fibrosis.\nCutaneous wound healing is divided into three phases\n• Inflammation (early and late)\n• Granulation tissue formation and re-epithelialization\n• Wound contraction, ECM deposition and remodeling', 'role': 'assistant'}]