This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb bones and muscles (proximal region) & Scapular movements, Subject name: Anatomy
Most common injured muscle in rotator cuff is: 
Select and explain. 
A. Supra-spinatus muscle, B. Infras-spinatus muscle, C. Teres minor, D. Subscapularis
A: Supra-spinatus muscle
Answer: A: Supra-spinatus muscle 
Explanation: Rotator cuff muscles- S -Supraspinatus on greater tubercle I -Infraspinatus on greater tubercle t -Teres minor on greater tubercle S -Subscapularis on lesser tubercle These helps in strengthening of capsule posteriosuperiorly. Anteroinferior dislocation are more common Supraspinatus tendon is injured most commonly