MOVESCI 230 Lecture Notes - Lecture 12: Supraspinatus Muscle, Iliac Crest, Lumbar Vertebrae

• School: U of M
• Department: Movement Science
• Course: MOVESCI 230
• Professor: Melissa Gross

Document Summary

Anterior shoulder muscles and movements: pectoralis major, origin: sternal head, clavicular head ii, functions. Insertion: lateral lip of intertubercular groove: clavicular head flexes, sternal head extends, both heads adduct, medially rotate, pectoralis minor, origin: anterior surface of ribs ii, functions. Insertion: coracoid process: protraction of scapula, depression of scapula, downward rotation of scapula, anterior deltoid, origin: lateral clavicle ii, functions. Insertion: deltoid tuberosity: flexion, medial rotation, biceps brachii, origin. 1: short head: coracoid process of scapula. Insertion: radial tuberosity ii: function: flexion of shoulder, coracobrachialis, origin: coracoid process of scapula ii, function. Posterior shoulder muscles and movements: trapezius, origin: external occipital protuberance; thoracic vertebrae ii, functions. Insertion: lateral clavicle, acromion, spine of scapula: upper portion elevates scapula, middle portion retracts scapula. Lower portion depresses scapula: all acting together rotates the scapula upward, deltoid, posterior, origin: spine of scapula. Insertion: deltoid tuberosity: extension b, middle deltoid. Latissimus dorsi: origin: spinous process of thoracic and lumbar vertebrae; iliac crest ii, function.