The teres minor is an intrinsic muscle of the shoulder region. It is part of the rotator cuff muscle group. Attachments: Originates from the posterior surface of the scapula, adjacent to its lateral border. It attaches to the greater tubercle of the humerus. Actions: Lateral rotation of the arm. Innervation: Axillary nerve. Blood supply: Circumflex scapular artery and the posterior circumflex humeral artery. By TeachMeSeries Ltd (2025) Fig 1The rotator cuff muscles, which act to stabilise the shoulder joint. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Print Article Rate This Article