Surgical neck fracture leads to all EXCEPT: (A) Weakness of abduction, (B) Deltoid muscle palsy, (C) Teres major palsy, (D) Teres minor palsy
Answer is C. Axillary nerve supplies: Deltoid (abductor of arm) and Teres Minor(lateral rotation) muscles. It winds up through surgical neck of humerus. So fracture of surgical neck damages axillary nerve causes: Teres minor palsy Deltoid palsy Abduction Of shoulder joint is damaged. Teres major is supplied by Lower subscapular nerve