Glenohumeral

Parent Structures

• Joints of the Shoulder

Joint Classification

• Ball and Socket
• Multiaxial
• Synovial

Joint Actions

• Abduction
  • Agonist
    • Supraspinatus
    • Deltoid
  • Innervator
    • C5
• Adduction
  • Agonist
    • Coracobrachialis
    • Pectoralis Major
    • Teres Major
    • Latissimus Dorsi
  • Innervator
    • C8
    • C6
    • C7
• Extension
  • Agonist
    • Triceps Brachii - Long Head
    • Pectoralis Major - To Midline
    • Deltoid - Posterior Fibres
    • Teres Major
    • Latissimus Dorsi
• Flexion
  • Agonist
    • Coracobrachialis - Weakly
    • Pectoralis Major
    • Biceps Brachii - Long Head
    • Deltoid - Anterior Fibres
• Lateral/External Rotation
  • Agonist
    • Infraspinatus
    • Deltoid - Posterior Fibres
    • Teres Minor
  • Restrictor
    • Superior Glenohumeral Ligament
    • Middle Glenohumeral Ligament
  • Innervator
    • C5
• Medial/Internal Rotation
  • Agonist
    • Subscapularis
    • Pectoralis Major
    • Deltoid - Anterior Fibres
    • Teres Major
    • Latissimus Dorsi
  • Innervator
    • C8
    • C6
    • C7

Bones

• Humerus
• Scapula

Articulating Surfaces

• Glenoid Fossa
• Head of the Humerus

Ligaments

• Coracoacromial Ligament
• Coracohumeral Ligament
• Inferior Glenohumeral Ligament
• Middle Glenohumeral Ligament
• Superior Glenohumeral Ligament