This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Physiology
After injury hair bulbs are seen crushed under microscopy. Probable type of wound; 
Select and explain. 
A. Abrasion, B. Laceration, C. Stab injury, D. None
B: Laceration
Answer: B: Laceration 
Explanation: The above features are suggestive of Laceration. Laceration - Features - Irregular margins Floor - Vessels/ Hair bulb - Crushed Tissue bridges Swallow tails - Small split from edge of laceration seen