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An easy way to learn shoulder muscles
 

An easy way to learn shoulder muscles

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A summary for learning the muscles of the shoulder including their attachments, innervation, etc., without having to have too many books open. Resources: "Grey’s anatomy", "Taschenatlas Anatomie", ...

A summary for learning the muscles of the shoulder including their attachments, innervation, etc., without having to have too many books open. Resources: "Grey’s anatomy", "Taschenatlas Anatomie", "McMinn’s Clinical Atlas of Human Anatomy" and Wikipedia. Awaiting further proof-reading!

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    An easy way to learn shoulder muscles An easy way to learn shoulder muscles Document Transcript

    • C. Riedinger ­ An easy way to learn musclesMuscles of the shoulder location / name meaning body part origin insertion nerve supply blood supply function layer clavicular head: anterior  surface of medial half of  clavicle, sternocostal  lateral lip of  lateral pectoral  pectoral branch of  head: anterior surface of  intertubercular groove of  adducts and medially pectoralis major major chest muscle shoulder supericial nerve thoracoacromial  sternum, superior six  humerus (long  rotates the humerus (lat. cord) trunk costal cartilages,  insertion) aponeurosis of the  external obliqe muscle stabilises scapula by  medial border and  medial pectoral  deep to  pectoral branch of  drawing it against the  3rd to 5th ribs near  superior surface of  nervepectoralis minor minor chest muscle shoulder pectoralis  thoracoacromial  thoracic wall,  their costal cartilages coracoid process of  (post. cord) major trunk horizontal adduction of  scapula shoulder lateral thoracic  protracts (=anterior  muscle thats  outer surface of upper 8  costal aspect of medial  long thoracic  artery,  movement of arms at serratus anterior notched like the  shoulder or 9 ribs (or more) margin of scapula nerve thoracodorsal  shoulder) and stabilises  edge of a saw artery scapula long head: supraglenoid  via common tendon into  tubercle of scapula  the bicipical tuberosity  supinator of forearm  (through sleeve of  of radius. Medial side:  when elbow is flexed,  synovial tissue in  anterior,  via bicipital  flexes elbow in fully biceps brachii biceps of the arm arm intertubercular /bicipital  musculocutaneous brachial artery superficial aponeurosis into deep  supinated position.  groove of humerus,  fascia of medial forearm  Shoulder: stabilises and  short head: coracoid  and subcutaneous  minor flexion process, joins long head  border of ulna midway down arm adducts shoulder (to  tip of coracoid process  muscle of the arm  anterior,  medial aspect mid­shaft  hold things under arm), coracobrachialis arm of scapula (with short  musculocutaneous brachial artery and coracoid process deep of humerus weak flexor of shoulder  head of biceps) joint long head pectoralis minor short  head coraco­ brachialis pectoralis  biceps major brachii serratus anterior
    • C. Riedinger ­ An easy way to learn musclesMuscles of the shoulder (2) ROTATOR 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nsertions of rotator cuff muscles:                              Insertions around bicipital / intertubercular groove:           supraspinatus* S S infraspinatus* I subscapularis* T pectoralis  major teres minor* deltoid teres major latissimus dorsi teres major serratus anterior (triceps (Right arm seem from post.)        S brachii) Bicipital groove: S ­ teres major medial to it sub­ ­ latissimus dorsi in floor of it scapularis* ­ pectoralis major lateral to it (Right arm seem from ant.)        ­ bicipital tendon on top! OTHER muscles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