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: Anatomy
All of the following muscles undergo paralysis after injury to C5 & C6 nerves except? 
Select and explain. 
A. Biceps, B. Corachobrachialis, C. Brachialis, D. Brachioradialis
B: Corachobrachialis
Answer: B: Corachobrachialis 
Explanation: Muscles paralysed in C5, C6 injury (Erb's palsy)1. Complete paralysis: Biceps, deltoid, brachialis, brachioradialis2. Paial: Supraspinatus, Infraspinatus, supinator