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Upper Extremity Muscles Material Type: Notes; Professor: Choate; Class: Human Anatomy & Physiology I; Subject: Biology; University: Lipscomb University; Term: Fall 2010;
Typology: Study notes
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Muscle Origin Insertion Movement Trapezius Spinal Column, Vertebrae Latissimus Dorsi Pectoralis Major Pectoralis Minor Coracoid process of scapula Deltoid Supraspinatus Abduction of shoulder Infraspinatus External rotation of shoulder Subscapularis Lesser tubercule of humerus Internal Rotation of shoulder Biceps Brachii Radial Tuberosity Triceps Brachii Olecranon of Ulna Extension at elbow Clavicle and Spine of the Scapula Elevation (superior fibers) or Depression (inferior fibers) of Scapula Inferior thorasic and all lumbar vertebrae Intertubecular groove of humerus Depression, retraction of Scapula, Adduction of Shoulder and Internal Rotation of shoulder Body of sternum, ribs 6- and medial, inferior portion of clavicle. Greater tubercule of humerus Protraction of Scapula, flexion, adduction and internal rotation of shoulder Anterior, Superior surface of ribs depression, protraction of scapula Clavicle and Acromion and Spine of Scapula Deltoid tuberosity of humerus Abduction of shoulder, flexion of shoulder (anterior fibers), and extension of shoulder (posterior fibers) Supraspinous fossa of Scapula Greater tubercule of humerus Infraspinous fossa of Scapula Greater tubercule of humerus Subscapular fossa of Scapula Long head - supragleniod tubercule of scapula. Short Head - Coracoid process of scapula Flexion of the elbow, flexion of the shoulder Lateral Head - Superior, lateral margin of humerus Long head - Infraglenoid tubercule of scapula Medial Head - Posterior surface of Humerus inferior to the radial groove.
Pronator Teres Midlateral surface of radius Pronation Supinator Supination Muscle Origin Insertion Movement Flexor Carpi Ulnaris Flexion and adduction at wrist Flexion and abduction at wrist Palmaris Longus Flexion at wrist Anterior shaft of radius flexion at joints of thumb extension and abduction of wrist Medial Epicondyle of Humerus and Coronoid Process of Ulna Lateral Epicondyle of Humerus and ridge near radial notch of the ulna Anteriolateral surface of radius distal to radial tuberosity Medial Epicondyl of Humerus, medial surface of olecranon and anteromedial portion of ulna Carpals and base of fifth metacarpal Flexor Carpi Radialis Medial Epicondyl of Humerus Base of second and third Metacarpals Medial Epicondyl of Humerus Palmar aponeurosis and flexor retinaculum Flexor digitorum superficialis Medial epicondyl of humerus and adjacent surfaces on the radius and ulna Midlateral surfaces of middle phalanges 2- (wraps around back) Flexion at PIP joints and MP joints and carpal joints Flexor digitorum profundus Medial and Posterior surfaces of ulna, medial surface of corocoid process and interosseus membrane Bases of distal phalanges of fingers 2- Flexion at DIP joints and minimal participation in flexion of PIP, MP and carpal joints Flexor pollicis longus base of distal phalanx of thumb Extensor carpi radialis longus Lateral supracondryal ridge of humerus Base of 2nd metacarpal bone
flexor pollicis brevis