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Branches of Axillary Artery for PDF 13.5.11 Diagram of branches Acromial Br lar Br icu of axillary artery Clav rtery mial a oacro Thorac Deltoid Br t 1st Par d 2n Superior thoracic artery Anterior Pectoral Br circumflex t Par Pectoralis minor humeral d artery 3r Sub- scapular artery Lateral thoracic artery Circumflex scapular artery Posterior circumflex humeral artery TheFromFrom axillary 1st2nd3rd part part artery (a)superior .(a) (a) subscapular begins The thoracoacromial thoracic at the runs outer– itdown runs border artery within along the of– a the thestoutlong firstfirst subscapularshort ribintercostal trunk,and ends nerve,which space. at projustthe- lowerjectswithin border forwardthe posterior of over terres theaxillary major inner ,fold. where boarder Near it continuesof the pectoralis lower as angle the minor brachial of theand scapula dividesartery. itinto divides four branches.into two, one (i) side clavicular, goes to runs the sideup over of the subclavius chest, the ; (ii) other pectoral to the is deep large surface and runs of Thedownthe latissimusaxillary between artery with the runsthetwo longacrosspectorals subscapular the withsuperior the nerve. externalaspect Near of anterior theits origin axilla thoracic itand gives is markednerve, off a large and by asuppliesbranch, line drawn thethese circumflexfrom muscles; the middle scapular(iii) acromial, of the artery, clavicle usually which to comes apasses point off backhalf-way a common through between trunk the “triangu withthe two the- condylesdeltoid,lar space” andof tothe runs the humerus, back dorsum beneath when of the the scapula. deltoidarm is raisedtoward(b) The to the anteriora right acromion; angle. circumflex and (iv) humeral deltoid runsartery down which beside is a smallthe cephalic artery thatvein, passes in a groove out across between the frontdeltoid of andthe pectoralishumerus, Itmajor,sending is divided and a branch endsinto threein up these to partsthe muscles. shoulder by the crossing joint through of the the pectoralis bicipital minor. groove 1st , and stage ends is medial,(b)in the lateral deltoid. 2nd thoracic stage (c) isThe – posterior,runs posterior down and under circumflex 3rd cover stage humeral ofis thelateral outer artery to borderthe is muscle. a largeof the artery pectoralis that minorruns back to the with wall the of circumflex the thorax nerve (and throughthe mammary the “quadrilateral gland in a female). space” supplying the surrounding structures, and breaking up, it ends at the deltoid. .
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