GH joint’s capsular ligaments N
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Questions and Answers

Which ligament provides at least a modest stabilizing tension to most movements of the shoulder?

  • Superior glenohumeral ligament
  • Middle glenohumeral ligament (correct)
  • Inferior glenohumeral ligament
  • Hammock-like inferior capsular ligament
  • Which ligament resists external rotation and inferior and anterior translations of the humeral head?

  • Superior glenohumeral ligament (correct)
  • Middle glenohumeral ligament
  • Inferior glenohumeral ligament
  • Hammock-like inferior capsular ligament
  • Where does the extensive inferior glenohumeral ligament attach proximally?

  • Along the superior rim of the glenoid fossa
  • Along the posterior rim of the glenoid fossa
  • Along the anterior-inferior rim of the glenoid fossa (correct)
  • Along the inferior rim of the glenoid fossa
  • How many components does the hammock-like inferior capsular ligament have?

    <p>Three</p> Signup and view all the answers

    Which part of the anterior and inferior capsule furnishes the primary ligamentous restraint to anterior translation of the humeral head?

    <p>Anterior band</p> Signup and view all the answers

    What specifically stresses the anterior band of the inferior capsule?

    <p>Forceful and dynamic activities involving abduction and external rotation</p> Signup and view all the answers

    What does the taut axillary pouch support?

    <p>The suspended humeral head</p> Signup and view all the answers

    What effect does the axillary pouch provide?

    <p>A cradling effect that resists inferior and anterior-posterior translations</p> Signup and view all the answers

    What is associated with recurrent anterior dislocations of the GH joint?

    <p>Injury and increased laxity of the anterior and inferior capsule</p> Signup and view all the answers

    Which ligament has complex bands of interlacing collagen fibers?

    <p>Superior glenohumeral ligament</p> Signup and view all the answers

    How many bands are the ligaments divided into?

    <p>Three</p> Signup and view all the answers

    Study Notes

    • The GH joint's capsular ligaments consist of complex bands of interlacing collagen fibers.
    • The ligaments are divided into superior, middle, and inferior bands.
    • The superior glenohumeral ligament resists external rotation and inferior and anterior translations of the humeral head.
    • The middle glenohumeral ligament provides at least a modest stabilizing tension to most movements of the shoulder.
    • The extensive inferior glenohumeral ligament attaches proximally along the anterior-inferior rim of the glenoid fossa.
    • The hammock-like inferior capsular ligament has three separate components: an anterior band, a posterior band, and an axillary pouch.
    • The taut axillary pouch supports the suspended humeral head and provides a cradling effect that resists inferior and anterior-posterior translations.
    • The anterior band furnishes the primary ligamentous restraint to anterior translation of the humeral head.
    • Forceful and dynamic activities involving abduction and external rotation specifically stress the anterior band of the inferior capsule.
    • Injury and increased laxity of this portion of the anterior and inferior capsule are associated with recurrent anterior dislocations of the GH joint.

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    Description

    Test your knowledge of the complex bands of the glenohumeral joint's capsular ligaments with this quiz. Learn about the superior, middle, and inferior bands and their roles in stabilizing the shoulder during different movements. Discover the specific functions of the anterior band, posterior band, and axillary pouch of the inferior capsular ligament, and how they work together to support the humeral head and resist translations. Assess your understanding of the potential consequences of injury and increased laxity of these

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