WebJun 27, 2024 · The subscapularis inserts on the lesser tubercle of the humerus, and it functions as an internal rotator. The supraspinatus muscles insert onto the greater tubercle of the humerus with its function as an abductor for the initial 30 degrees of abduction. The infraspinatus also inserts onto the greater tubercle, but a little inferior to … WebAug 11, 2024 · Greater Tubercle (Greater Tuberosity): It lies on the lateral side of the bone, with an anterior, and a posterior surface. The three rotator cuff muscles, supraspinatus, infraspinatus, and teres minor, attach to the …
Anatomy, Shoulder and Upper Limb, Scapulohumeral …
WebImage 3: The crest of the greater tubercle forms the lateral lip of the bicipital groove and is the site for insertion of pectoralis major. Nerve supply and Arterial supply [edit ... The function of the pectoralis major … WebJun 9, 2024 · Insertion: greater tubercle of humerus Innervation: suprascapular nerve (C4, C6) Function: initiation of abduction of arm to 15° at glenohumeral joint; stabilization of humeral head in glenoid … signaling cricket clicker clacker
Shoulder Ligaments: Anatomy, Function & Injuries
WebAug 8, 2024 · The greater tubercle is situated on the lateral side of the humeral head. This tubercle acts as the attachment for the tendons of the supraspinatus, infraspinatus, and teres minor muscles. The greater … WebThe greater tubercle is situated lateral to the head and lesser tubercle. Its upper surface is rounded and marked by three flat impressions: the highest of these gives insertion to the Supraspinatus; the middle to the Infraspinatus; the lowest one, and the body of the bone for about 2.5 cm. below it, to the Teres minor. The lateral surface of the greater tubercle is … Webproximal attachment: aponeurosis (tendon) tethered to iliac crest, sacrum, sacroiliac ligaments, and sacral and lumbar spinous processes. distal attachment: ribs and mastoid process of skull. innervation: posterior rami of spinal nerves. function: extends and laterally bends vertebral column (body) and head, rotation of body. signaling devices military