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: Forensic Medicine
An open wound is a - 
Select and explain. 
A. Contussion, B. Abrasion, C. Laceretion, D. Concussion
C: Laceretion
Answer: C: Laceretion 
Explanation: Open wound refers to injuries where overlying skin is torn, e.g. in lacerations, incised wound and stab or puncture wound.
In contusion and abrasions, overlying skin is intact.
Concussion is not a wound.