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UPPER EXTREMITY Pages
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Clavicle - Collarbone
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S- shaped double curvature long bone
form the anterior portion of the shoulder girdle allows the scapula to move on the thoracic wall → increase the range of motion of the limb and trasmits shocks from the upper limb to the axial skeleton articulates medially with manubrium sterni and laterally with acromion of the scapula medial half is convex anteriorly while lateral half posteriorly sternal end is enlarged, acromial end is flat superior surface is smooth × inferior is rough
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Acromial extremity Body trapezoid line conoid tubercle
deltoid tubercle subclavian groove costal tubercle Sternal extremity
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Scapula A triangular bone, that lies on the posterolateral aspect of the thorax, overlying the 2nd – 7th ribs
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borders sup. and inf. angle lateral angle medial = vertebral
superior = suprascapular medial = vertebral lateral = axillary sup. and inf. angle lateral angle glenoid cavity supraglenoid tubercle infraglenoid tubercle neck of scapula coracoid process scapular notch
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posterior surface anterior surface acromion spine of the scapula
supraspinous fossa infraspinous fossa anterior surface subscapular fossa acromion acromial artic. facet
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Humerus
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Proximal epiphysis Diaphysis anatomical neck surgical neck
head anatomical neck surgical neck greater tubercle lesser tubercle intertubercular groove crest of lesser tubercle crest of greater tubercle Diaphysis deltoid tuberosity radial groove
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Distal epiphysis medial epicondyle coronoid fossa lateral epicondyle
trochlea coronoid fossa lateral epicondyle capitulum radial fossa olecranon fossa groove for ulnar nerve supracondylar ridge
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Radius
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Proximal epiphysis Diaphysis neck of radius radial tuberosity
head with articular fovea neck of radius radial tuberosity articular circumference Diaphysis anterior border posterior border interosseous border oblique line
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Distal epiphysis styloid process carpal articular surface
ulnar notch carpal articular surface dorsal tubercle 4 grooves for muscles
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Ulna
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Proximal epiphysis Diaphysis Distal epiphysis coronoid process
olecranon coronoid process radial notch trochlear notch ulnar tuberosity Diaphysis anterior border posterior border interosseous border Distal epiphysis articular circumference styloid process
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Carpal bones, Metacarpals & Phalanges
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Proximal row Diaphysis lunate triquetral pisiform trapezium trapezoid
scaphoid lunate triquetral pisiform Diaphysis trapezium trapezoid capitate hamate
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Metacarpals Phalanges proximal middle (except thumb) distal
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