BIOB33H3 Lecture Notes - Humerus, Tensor Fasciae Latae Muscle, Pronator Teres Muscle
15 Dec 2012
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Document Summary
The muscular system: appendicular musculature (based on chapter 11) Muscles of the pectoral girdle and upper limbs. Pectoralis major: adducts and medially rotates the arm. Teres major: extension and medial rotation at the shoulder. Latissimus dorsi: adduction and medial rotation at the shoulder. Most of these muscles originate on the humerus and insert upon the forearm and wrist. Long head of triceps brachii: originates on the scapula and inserts on the olecranon. Long head of biceps brachii: originates on the scapula and inserts of the radial tuberosity of the radius. Biceps brachii: flexes at the elbow and shoulder. Triceps brachii: extension at elbow, extension and adduction at elbow (long head) Long head: extension at the elbow and adduction at the shoulder. Flexor origin medial epicondyle of the humerus. Flexor carpi radialis: flex and abduct the wrist. Flexor carpi ulnaris: flex and adduct the wrist. Extensor carpi radialis longus: extend and abduct at the wrist.
