This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Extremity, Subject name: Anatomy
Root value of nerve supplying small muscles of hand - 
Select and explain. 
A. C5C6, B. C3C4, C. C8T1, D. C6C7
C: C8T1
Answer: C: C8T1 
Explanation: Ans. is 'c' i.e., C8Tl* All small muscles of hand i.e. thener, hypothenar, interossei & lumbricals are supplied by C8, T7 nerve roots.JointMovementSpinal segmentMovementSpinal segmentShoulderAbductionC5AdductionC6,7,8ElbowFlexionC5,6ExtensionC,7,8RadioulnarSupinationC6PronationC7WristExtensionC6FlexionC7FingersFlexion/ ExtensionC8Adduction/AbductionT1