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Acromioclavicular Joint
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| Acromioclavicular Joint | |
|---|---|
| Primary Type | Synovial Joint |
| Secondary Type | Planar Joint |
| Bones | Scapula, Clavicle |
| Feature | Fibrocartilaginous wedge-shaped disc. |
| Ligaments | Coracoclavicular, coracoacromial, superior acromioclavicular, and inferior acromioclavicular ligaments. |
| Muscles | No muscles directly act on this joint. |
| Innervation | Axillary, suprascapular, and lateral pectoral nerves |
| Vasculature | Suprascapular and thoracoacromial arteries |
| ROM | |
| Volume | 2mL |
| Conditions | Acromioclavicular Joint Osteoarthritis, Acromioclavicular Joint Injury |
The acromioclavicular joint (ACJ) is formed by the junction between the acromion and the clavicle. It is a plane synovial joint and forms part of the shoulder girdle (See Shoulder Biomechanics).
