Anatomy Upper limb bones and muscles (proximal region) & Scapular movements 21747723 Deltoid muscle causes all EXCEPT:- A Flexion of shoulder B Extension of shoulder C Internal rotation of shoulder D Adduction of shoulder High-Yield Explanation Deltoid muscle fibres Movements Middle (lateral) fibres abductor at shoulder joint Anterior fibres flexion and medial rotation Posterior fibres extension & lateral rotation