This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries by Explosives, Subject name: Forensic Medicine
Most common organ to be injured in primary blast injuries is: 
Select and explain. 
A. Liver, B. Spleen, C. Skin, D. Tympanic membrane
D: Tympanic membrane
Answer: D: Tympanic membrane 
Explanation: Ans: D (Tympanic membrane) Ref: The Essentials of Forensic Medicine and Toxicology by KS Narayan Reddy. 29th edition. 2010.Explanation:Primary blasts can be air blast, underwater blast or solid blast.The injury is a result of the wave of pressure created during a blast.Most common organ involvement:Air blast - Tympanic membrane. Lung, Middle ear, cochlea, eyes. bowelsUnderwater blast - GIT, lungsSolid blast - Skeleton, GIT. Lungs