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
The nerve that supplies the marked structure
assistant
The correct answer is  marked structure is Levator scapulae Nerve supply C5 Dorsal scapular nerve supplies Levator scapulae and Rhomboids major/ remarks : brachial plexus is repeat topic ref : GRAYS ANATOMY AND BD CHAURASIA