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    • Shoulder Anatomy
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  • Home
    • About Dr. Izadi
    • What's a Hand Surgeon?
  • Hand
    • Hand Anatomy
    • Arthritis of the Hand >
      • Hand Arthritis
      • Knuckle Arthritis
      • Thumb Arthritis
    • Dupuytren's Contracture
    • Fingers & Thumb >
      • Baseball (Mallet) Finger
      • Basketball Finger Injuries
      • Fingertip Injuries
      • Jammed Finger
      • Jersey Finger
      • Trigger Finger
      • Gamekeeper's Thumb
      • Skier's Thumb
      • Thumb Sprain
    • Ganglion Cysts
    • Hand Fractures
    • Nail Bed Injuries
    • Hand Numbness & Tingling
    • Hand Pain
    • Tendon Injuries >
      • Extensor Tendon Injuries
      • Flexor Tendon Injuries
  • Wrist
    • Wrist Anatomy
    • Wrist Arthritis
    • Wrist Arthroscopy
    • Carpal Tunnel Syndrome
    • Cyclist's Palsy
    • de Quervain's Tendonitis
    • Wrist Fractures >
      • Scaphoid Fracture
      • Scaphoid Non-Union
      • Wrist Fracture
    • Ganglion Cysts
    • Golf Injuries
    • Kienbock Disease
    • Wrist Pain
    • Snowboarding Injuries
  • Elbow
    • Elbow Anatomy
    • Elbow Arthritis
    • Cubital Tunnel Syndrome
    • Distal Biceps Tendon Rupture
    • Elbow Fractures
    • Golfer's Elbow (Medial Epicondylitis)
    • Olecranon Bursitis
    • Elbow Pain
    • Tennis Elbow (Lateral Epicondylitis)
  • Shoulder
    • Shoulder Anatomy
    • Shoulder Arthritis
    • Shoulder Fractures
    • Frozen Shoulder
    • Shoulder Impingement
    • Shoulder Pain
    • Proximal Biceps Tendon Rupture
    • Rotator Cuff Tear
  • Workers Compensation
    • What is Workers Compensation?
    • Workers Compensation Appointment
    • For Case Workers
  • Patient Center
    • New Patients
    • Second Opinion
    • Wide Awake Hand Surgery
    • Anesthesia
    • Before Surgery
    • Day of Surgery
    • After Surgery
    • Smoking & Wound Healing
    • Steroid Injections
  • Patient Stories
    • Share Your Story
  • Contact
    • Ask Dr. Izadi
    • Dr. Izadi's Blog

Shoulder Anatomy

There are three shoulder joints: glenohumeral, acromioclavicular, and sternoclavicular. The glenohumeral joint is formed between the head of the humerus and the lateral scapula. It is a ball and socket joint that allows the arm to rotate or to hinge out and up away from the body. The acromioclavicular joint is formed between the acromion of the scapula and the clavicle. It allows a person to raise their arm above the head. The sternoclavicular joint occurs at the medial end of the clavicle with the top most portion of the sternum. Its main function is to stabilize shoulder movements.  

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