lecture 4b: proximal UE joints & brachium

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4 Terms

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sternoclavicular joint

  • type: saddle

  • parts:

    • articular disc (protected by ligaments)

    • ligaments:

      • anterior sternoclavicular L.

      • posterior sternoclavicular L.

      • 1. interclavicular L. (b/w 2 clavs)

      • 2. costaclavicular L. (1st rib and clav.)

<ul><li><p>type: saddle</p></li><li><p>parts:</p><ul><li><p>articular disc (protected by ligaments)</p></li><li><p>ligaments:</p><ul><li><p>anterior sternoclavicular L. </p></li><li><p>posterior sternoclavicular L. </p></li><li><p>1. interclavicular L. (b/w 2 clavs)</p></li><li><p>2. costaclavicular L. (1st rib and clav.)</p></li></ul></li></ul></li></ul><p></p>
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acromioclavicular joint (AC)

  • type: plane

  • ligaments:

    • acromioclavicular ligament

    • coracoclavicular ligament

      • conoid ligament

      • trapezoid ligament

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glenohumeral joint

  • ball and socket (shallow, mobile)

  • parts:

    • joint capsule (produces fluid to reduce fluid b/w articular cartilage on humerus/glenoid cavity)

      • fibrous

      • synovial

    • ligaments:

      • glenohumeral ligaments

      • coracohumeral ligament

      • transverse humeral ligamen

      • coraco-acromial ligament

    • bursa:

      • subacromial bursa

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