This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thermal injury, Subject name: Forensic Medicine
Heat rupture can be differentiated from incised wound by - 
Select and explain. 
A. Intact blood vessels & nerves at the floor of the wound, B. Seen in front of thing, C. Small in back of thing, D. Small and multiple
A: Intact blood vessels & nerves at the floor of the wound
Answer: A: Intact blood vessels & nerves at the floor of the wound 
Explanation: HEAT RUPTURE: If heat applied is very great skin contracts and heat rupture occurs either before or after death. heat rupture is differentiated from incised wounds by 1. absence of bleeding in the wound and surrounding tissues, since heat coagulates 2. intact vessels and nerves are seen in the floor 3. irregular margins 4. bruising and other signs of vital reactions are not present in the margins REF: The Synopsis of Forensic Medicine and Toxicology 29th edition page no:161.