This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mechanical Injuries, Subject name: Forensic Medicine
[{'content': 'Laceration shows all the features except: \nSelect and explain. \nA. Bruising and abrasion around margins, B. Irregular, Ragged margins, C. Loss of tissue, D. More bleeding', 'role': 'user'}, {'content': 'Answer: D \nExplanation: - There is lesser bleeding in case of lacerations because of crushing of the blood vessels . - General Features of Laceration: Irregular Shape Irregular & uneven Margins Contused edges Floor of laceration shows following features : - Tissue bridges (tissue, blood vessels and nerves bridging across the gap of the wound) - Less hemorrhage because of crushed blood vessels. - Foreign paicles like mud may be seen embedded in the wound, which gives clue about the scene of crime', 'role': 'assistant'}]