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Shoulder joint complex

The five components of the shoulder, glenohumeral anatomy, gliding planes, and joint mechanics.

  • 38 explained questions
  • 23 flashcards
  • 96 estimated course minutes

Updated

What you will learn

  • Locate the three true joints and two gliding planes of the shoulder complex.
  • Describe the glenohumeral surfaces, labrum, capsule, synovium, and ligaments.
  • Explain muscular stabilization and the role of the periarticular bursae.
  • Relate movement planes and axes to glenohumeral and scapulothoracic ranges.

Course outline

  1. The shoulder as a functional unit

    An orientation map of the five components linking the upper limb to the trunk.

    7 min

  2. Glenohumeral surfaces and labrum

    The mismatch between the humeral head and glenoid, and the adaptation provided by the labrum.

    14 min

  3. Capsule, synovium, and ligaments

    The passive structures that enclose, lubricate, and reinforce the glenohumeral joint.

    19 min

  4. Muscular coaptation and periarticular bursae

    The muscles that keep the humeral head against the glenoid and the bursae that facilitate gliding.

    15 min

  5. Movement planes, axes, and ranges

    The three glenohumeral degrees of freedom and the additional range provided by scapulothoracic motion.

    16 min

  6. The two clavicular joints

    The surfaces, means of union, and movements of the sternocostoclavicular and acromioclavicular joints.

    12 min

  7. Gliding planes and full shoulder motion

    Scapular motion on the thorax, the subacromial-deltoid plane, and their role within the shoulder complex.

    13 min

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