Anatomy And Function Of The Shoulder

what makes up your shoulder?

Your shoulder is a complex ball and socket joint that allows for more motion than any other joint in the body. It is because of this mobility that the shoulder is particularly prone to injury and degenerative problems like rotator cuff tears and osteoarthritis.  The humeral head (ball) articulates with a small concavity on the scapula known as the glenoid (socket).  The mismatch in size between these two parts is somewhat analogous to a golf ball on a tee.  For this reason, strong ligaments as well as the rotator cuff act to provide stability while at rest and through the many motions that the shoulder is able to perform. The scapula serves as the major attachment site for this complex series of ligaments, joint capsule, and the rotator cuff muscles.  The acromioclavicular (AC) joint, lies just above the shoulder joint and is the connection between the clavicle (collar bone) and the scapula (shoulder blade).

Watch the video to learn more about the detailed anatomy and function of your shoulder!

In this episode of eOrthopodTV, orthopaedic surgeon Randale C. Sechrest, MD narrates an animated tutorial on the basic anatomy of the shoulder.





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Video: courtesy of eOrthopod.comTV. All other materials copyright © 2015 Smith & Nephew, All Rights Reserved.