This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thermal injuries, Subject name: Forensic Medicine
Feature of ruptured skin caused by excessive heat 
Select and explain. 
A. Irregular margin, B. Clear regular margin, C. Contused margin, D. Abraded margin
A: Irregular margin
Answer: A: Irregular margin 
Explanation: HEAT RUPTURE HAS IRREGULAR MARGINS WITH NO CONTUSION OR ABRASION Heat rupture/ splits Skin splits occurring due to severe burning/ charring Irregular margins Sites: Fleshy areas, Extensor surfaces & joints. Multiple, Large (several centimeters) Resembles incised or lacerated wounds. Intact nerves, blood vessels in the floor of heat rupture. Bleeding is absent Vital reaction is absent