Chapter: The Massage Connection ANATOMY AND PHYSIOLOGY : Skeletal System and Joints

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Acromioclavicular Joint

Acromioclavicular Joint
Articulating Surface and Type of Joint

ACROMIOCLAVICULAR JOINT

Articulating Surface and Type of Joint

This joint is formed by the lateral end of the clavicle and the acromion of the scapula. It is a planar joint.

Ligaments

The major ligaments are the superior and inferioracromioclavicular ligaments and the coracoclavic-ular ligaments (see Figure 3.40). The latter, althoughsituated away from the joint, provides joint stability. The trapezoid and conoid ligaments are important for preventing excessive lateral and superior move-ments of the clavicle. They also help suspend the scapula from the clavicle.

Movements, Range of Motion, and Muscles

Little movement takes place in this joint.





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