system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Injury occurs at C7 root, in what pa of arm, sensation will be lost
assistant
The correct answer is  BD CHAURASIA S HUMAN ANATOMY SIXTH edition Vol 1 Arm is not supplied by cranial nerves It is mainly supplied by ulnar and median nerve So an injury to root of C 7 is most unlikely to cause loss of sensation of arm