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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
Retraction of scapula is by which fibre
assistant
The correct answer is  Ans. B Middle fibre of trapezius* Retraction of scapula is done for middle fibres of trapezius musclesMuscles of Scapular Stabilization* Trapezius:# Retraction (M)# Elevation (S)# Depression (I)# Upward rotation (S, M)* Rhomboid--retraction* Levator scapular--elevation* Pectoralis major--protraction* Serratus anterior--Protraction