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KIVO Med

Shoulder muscles

The anterior, medial, lateral, and posterior shoulder muscle groups, with their attachments, actions, and innervation.

  • 55 explained questions
  • 45 flashcards
  • 66 estimated course minutes

Updated

What you will learn

  • Classify the shoulder muscles by anatomical group.
  • Relate each muscle to its origin, insertion, and bony relationships.
  • Match each muscle to its stated actions.
  • Match each muscle to its nerve supply and to root levels when specified.

Course outline

  1. A topographic map of the shoulder muscles

    Locate the four muscle groups and understand the origin-insertion-action-innervation framework used throughout the course.

    7 min

  2. Anterior group: two layers, three muscles

    Distinguish subclavius, pectoralis minor, and pectoralis major by depth, attachments, actions, and innervation.

    15 min

  3. Medial and lateral groups: serratus and deltoid

    Relate serratus to scapular fixation and rotation, then identify the three bundles of deltoid.

    13 min

  4. Posterior group: scapulohumeral muscles

    Compare subscapularis, supraspinatus, infraspinatus, and teres minor, then locate their relationships around the scapula.

    17 min

  5. Teres major and latissimus dorsi

    Detail the attachments, actions, innervation, and relationships of the final two muscles in the posterior group.

    14 min

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Educational resources for medical studies; they do not replace your faculty’s teaching or medical advice.

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