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Upper Extrems

Shoulder Girdle Muscles Instertions Actions & Origins

QuestionAnswer
What is the origin of Trapezius Upper Fibers: Occipital Protuberance, Middle Fibers: Spinous Processes of C7-T3, Lower Fibers: Spinous Processes of T4-12
What is the insertion of Trapezius Upper Fibers: Posterior lateral third of the Clavicle, Middle Fibers: Medial Acromion process and superior scapular spine, Lower Fibers: Inferior medial scapular spine
What is the action of Trapezius Upper Fibers: elevation and cervical extension, Middle Fibers: elevation, upward rotation and retraction, Lower Fibers: depression, upward rotation and retraction
What is the origin of Levator Scapulae Transverse process of C1-4
What is the insertion of Levator Scapulae Medial border of scapular superior to scapular spine
What is the action of Levator Scapulae Elevation
What is the origin of Rhomboid Spinous processes of C7-T5
What is the insertion of Rhomboid Medial border of the scapular, inferior to spine
What is the action of Rhomboid Retraction and downward rotation
What is the origin of Serratus Anterior Lateral surface of ribs 1-9
What is the insertion of Serratus Anterior Anterior aspect of length of medial border of scapula
What is the action of Serratus Anterior Protraction
What is the origin of Pectoralis Minor Anterior surfaces of ribs 3-5
What is the insertion of Pectoralis Minor Coracoid Process
What is the action of Pectoralis Minor Protraction
What is the origin of Deltiod Aneterior Fibers: Anterior lateral third of clavicle, Middle Fibers: lateral aspect of acromion, Posterior Fibers: inferior edge of spine of scapula
What is the insertion of Deltoid Deltoid Tuberosity
What is the action of Deltoid Anterior Fibers: shoulder abduction, flexion, horizone adduction and internal rotation, Middle Fibers: shoulder abduction, Posterior Fibers: shoulder abduction, extension, horizontal abduction and external rotation
What is the action of Pectoralis Major Upper Fibers: (clavicular head) medial 1/2 of anterior clavicle, Lower Fibers: (sternal head) anterior costal cartilage of ribs 1-6 and adjoining sternum
What is the insertion of Pectoralis Major Later lip of bicipital groove
What is the action of Pectoralis Major Upper Fibers: shoulder internal rotation, horizontal adduction, flexion, Lower Fibers: shoulder internal rotation, horizontal adduction, extension and adduction
What is the origin of Coracobrachialis Coracoid process
What is the insertion of Coracobrachialis Middle of medial border of humeral shaft
What is the action of Coracobrachialis Shoulder flexion, shoulder adduction, horizontal adduction
What is the origin of Subscapularis Entire anterior surface of subscapular fossa
What is the insertion of Subscapularis Lesser tubercle of humerus
What is the action of Subscapularis Shoulder internal rotation, shoulder adduction
What is the origin of Supraspinatus Supraspinatus fossa
What is the insertion of Supraspinatus Superiorly on the greater tubercle of humerus
What is the action of Superspinatus Weak shoulder abduction
What is the origin of Infraspinatus Medial aspect of infraspinatus fossa
What is the insertion of Infraspinatus Posteriorly on the greater tubercle of humerus
What is the action of Infraspinatus Shoulder external rotation, shoulder horizontal abduction
What is the origin of Teres Minor Posteriorly on superior 2/3 of lateral border of scapula
What is the insertion of Teres Minor Posteriorly on greater tubercle of humerus
What is the action of Teres Minor Shoulder external rotation, and shoulder horizontal abduction
What is the origin of Teres Major Posteriorly on the inferior 1/3 of lateral border of scapula
What is the insertion of Teres Major Medial lip of bicipital groove
What is the action of Teres Major Shoulder extension, internal rotation and adduction
What is the origin of Biceps Brachii Long Head: supraglenoid tubercle (above superior lip of glenoid fossa), Short Head: coracoid process
What is the Insertion of Biceps Brachii Radial tuberosity
What is the action of Biceps Brachii Elbow flexion, supination, shoulder flexion
What is the origin of Brachialis Distal half of anterior humerus
What is the insertion of Brachialis Coronoid process of ulna
What is the action of Brachialis Elbow flexion
What is the origin of Brachioradialus Distal 2/3 of lateral condyloid ridge of humerus
What is the insertion of Brachioradialus Lateral radial styloid process
What is the action of Brachioradialus Elbow flexion, pronation from supinated position to neutral, supination from pronated position to neutral
What is the origin of Triceps Brachii Long Head: infraglenoid tubercle (below inferior lip of glenoid fossa), Lateral Head: proximal half of posterior humerus, Medial Head: Distal 2/3 of posterior humerus
What is the insertion of Triceps Brachii Olecranon process
What is the action of Triceps Brachii All heads: elbow extension, long head: shoulder extension
What is the origin of Pronator Teres Distal, Medial condyloid ridge of humerus and medial proximal ulna
What is the insertion of Pronator Teres Middle 1/3 of lateral radius
What is the action of Pronator Teres Pronation
What is the origin of Supinator Lateral epicondyle and neighboring posterior ulna
What is the insertion of Supinator Lateral, proximal radius just distal to head
What is the action of Supinator Supination
What is the origin of Flexor Carpi Radialis Medial Epicondyle
What is the insertion of Flexor Carpi Radialis Proximal metacarpals 2-3 (Palmar Surface)
What is the action of Flexor Carpi Radialis Wrist flexion, radial deviation
What is the origin of Palmaris Longus Medial Eopicondyle
What is the insertion of Palmaris Longus Palmar aponeurosis of metacarpals 2-5
What is the action of Palmaris Longus Wrist flexion
What is the origin of Flexor Carpi Ulnaris Medial epicondyle, and posterior proximal ulna
What is the insertion of Flexor Carpi Ulnaris Pisiform, hamate and proximal 5th metacarpal (palmer surface)
What is the action of Flexor Carpi Ulnaris Wrist Flexion and ulnar deviation
What is the origin of Extensor Carpi Ulnaris Lateral epicondyle, middle 2/4 of posterior border of ulna
What is the insertion of Extensor Carpi Ulnaris Proximal 5th metacarpal (dorsal surface)
What is the action of Extensor Carpi Ulnaris Wrist extension, ulnar deviation
What is the origin of Extensor Carpi Radialis Brevis Lateral epicondyle
What is the insertion of Extensor Carpi Radialis Brevis Proximal 3rd metacarpal (dorsal surface)
What is the action of Extensor Carpi Radialis Brevis Wrist extension, radial deviation
What is the origin of Extensor Carpi Radialis Longus Distal 1/3 of lateral condyloid ridge of humerus and lateral epicondyle
What is the insertion of Extensor Carpi Radialis Longus Proximal 2nd metacarpal (dorsal surface)
What is the action of Extensor Carpi Radialis Longus Wrist extension, and radial deviation
What is the origin of Flexor Digitorum Superficials Medial epicondyle, medial coronoid process, proximal 2/3 of anterior radius
What is the insertion of Flexor Digitorum Superficials Tendon splits and attatches to sides of middle phalanx of 4 fingers (palmar surface)
What is the action of Flexor Digitorum Superficials Flexion at MCP and POP joints 2-5, wrist flexion
What is the origin of Flexor Digitorum Profundus Proximal 3/4 of anterior medial ulna
What is the insertion of Flexor Digitorum Profundus Proximal end of distal phalanx of 4 fingers (palmar surface)
What is the action of Flexor Digitorum Profundus Flexion of MCP, PIP and DIP joints 2-5, wrist flexion
What is the origin of Flexor Pollicis Longus Middle anterior surface of radius and anterior medial ulna just distal to coronoid process
What is the insertion of Flexor Pollicis Longus Proximal end of distal phalanx of thumb (palmar surface)
What is the action of Flexor Pollicis Longus Flexion of 1st carpometacarpal, MCP, and IP joint, wrist flexion
What is the origin of Extensor Digitorum Lateral Epicondyle
What is the insertion of Extensor Digitorum 4 tendons to proximal end of middle distal phalanges of 4 fingers (dorsal surface)
What is the action of Extensor Digitorum Extension of MCP joints 2-5 and wrist extension
What is the origin of Extensor Pollicis Longus Posterior surface of distal/medial ulna
What is the insertion of Extensor Pollicis Longus Proximal end of distal phalanx of thumb (dorsal)
What is the action of Extensor Pollicis Longus Extension of 1st MCP and IP joints, wrist extension
What is the origin of Extensor Pollicis Brevis Posterior surface of lower/middle radius
What is the insertion of Extensor Pollicis Brevis Proximal end of proximal phalanx of thumb (dorsal surface)
What is the action of Extensor Pollicis Brevis Extension of 1st MCP joint
What is the origin of Abductor Pollicis Longus Posterior aspect of radius and midshaft of ulna
What is the insertion of Abductor Pollicis Longus Proximal 1st metacarpal (dorsal surface)
What is the action of Abductor Pollicis Longus Abduction 1st carpometacarpal joint, radial deviation
Created by: lindizzle07