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Hint
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Answer
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Anterior Axioappendicular muscles (4)
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Pectoralis Major
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AAM
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Pectoralis Minor
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AAM
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Subclavius
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AAM
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Serratus Anterior
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Posterior Axioappendicular muscles (5)
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Trapezius
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PAM
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Latissimus dorsi
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PAM
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Levator scapulae
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PAM
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Rhomboid Minor
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PAM
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Rhomboid Major
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Scapulohumeral muscles
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Rotator Cuff
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SM
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Teres Major
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SM
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Deltoid
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Muscles of the Rotator Cuff
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Supraspinatus
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Rotator Cuff
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Infraspinatus
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Rotator Cuff
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Teres Minor
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Rotator Cuff
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Subscapularis
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Common Function of Rotator Cuff
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Hold humeral head in glenoid cavity
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Anterior Arm Muscles
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Biceps Brachii
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AArmM
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Coracobrachialis
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AArmM
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Brachialis
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Posterior Arm Muscles
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Triceps Brachii
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PArmM
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Aconeus
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Nerve injured in Surgical Neck Injury (Regimental badge/deltoid weak)
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Axillary
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Nerve injured in Mid-shaft Injury (wrist weak)
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Radial
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Nerve Injured in Distal Humerus Injury
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Median
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Nerve Injured in Medial Epicondyle Injury
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Ulnar
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Only articulation of UL to axial skeleton - Synovial Saddle Joint
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Sternoclavicular
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Synovial Saddle Joint Ligaments
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sternoclavicular
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Synovial Saddle Joint Ligaments
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Interclavicular
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Synovial Saddle Joint Ligaments
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Costoclavicular
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Plane type synovial shoulder joint
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Acromioclavicular joint
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Plane joint ligaments
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Acromioclavicular
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Plane joint ligaments
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Coracoacromial
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Plane joint ligaments (2)
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Conoid, Trapezoid, coracoclavicular
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Glenohumeral ligaments (3)
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Superior, middle, inferior
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Glenohumeral ligaments
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Coracohumeral
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Glenohumeral ligaments
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Transverse Humeral
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Elbow joints
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humeroulnar
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Elbow joints
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humeroradial
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Elbow joints (pivot joint --> pro/supination)
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proximal radioulnar
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Ligaments reinforcing elbow (3 bands)
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Ulnar collateral
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Ligaments that blend
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Radial collateral, anular ligament
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Innervation to anterior/flexor compartment
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Musculocutaneous nerve
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Innervation to Posterior/Extensor compartment
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Radial nerve
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Main arteries of the arm
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Subclavian, Axillary, Brachial
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Subclavian origin in left and right arm
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aorta, brachiocephalic trunk
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Subclavian branches (1(2))
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thyrocervical trunk (transverse cervical, suprascapular)
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Subclavian branches
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Dorsal Scapular
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What do the subclavian branches anastomose with and via
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3rd part of axillary via subscapular artery
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Branches of Axillary 1st - Screw the lawyer save a patient
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Superior thoracic
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2nd
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Thoracoacromial trunk
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3rd (3 - anastomose)
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Subscapular, anterior and posterior circumflex humeral
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Branches of the 2nd axillary branch (CPDALT)
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clavicular, pectoral, deltoid, acromial, lateral thoracic
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What vein is near brachial artery at pulse point
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Median Cubital Vein
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What separates these and protects the brachial during blood tests
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Bicipital Aponeurosis
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What is the brachial artery medial to at the proximal humerus, and lateral to at the distal humerus?
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Median nerve
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Brachial Plexus parts - read that damn cadaver book
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Roots, trunks, Divisions, Cords, Branches
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What unites to form the superior trunk
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C5, C6
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What unites to form the inferior trunk
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C8, T1
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Divisions
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3 anterior, 3 posterior
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Cords
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lateral, medial, posterior
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5 terminal Branches + origin
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Musculocutaneous (C5-7)
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5 terminal branches
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Median, C6-T1
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5 terminal branches
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Ulnar, C8-T1
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5 terminal branches
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Axillary. C5-C6
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5 terminal branches
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Radial, C5-T1
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What is innervated by axillary nerve
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Deltoid, teres minor, skin of lower deltoid
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What is innervated by radial nerve
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All Posterior muscles, dorsal 3.5 fingers
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Upper brachial plexus injury - forced separation of head from shoulder, affects C5-6, e.g. during birth/fall
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Erb's Palsy
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Lower brachial plexus injury - forced separation of arm from head, affects C8-T1, claw hand e.g. during birth or grabbing above in a fall
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Klumpke's Palsy
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Muscles that insert in the scapula that we learnt (4)
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Pectoralis minor
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scapula
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Serratus Anterior
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scapula
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Levator Scapulae
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scapula
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Minor + Major Rhomboids
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ONLY rotator cuff muscle that origin in scapula but DOESN'T insert on the greater tubercle of humerus
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Subscapularis
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Muscles inserting on the intertubercular sulcus (3)
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Pectoralis Major
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intertubercular sulcus
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Latissimus Dorsi
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intertubercular sulcus
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Teres Major
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