This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Important complications in orthopaedics, Subject name: Anatomy
First muscle affected in compament syndrome : 
Select and explain. 
A. Flexor Digitorum sublimis, B. Flexor Digitorum profundus, C. Flexor carpi ulnaris, D. Flexor carpi radialis
B: Flexor Digitorum profundus
Answer: B: Flexor Digitorum profundus 
Explanation: Flexor muscles of forearm has superficial and deep mucles. Deep muscles-Flexor digitorum profundus Flexor digitorum longus Pronator quadratus. Deep muscles are more affected by increased intracompamental syndrome. ref : maheswari 9th ed