Shoulder Anatomy and Tests

Those are the two joints of the shoulder.

The acromioclavicular joint and the glenohumeral joint.

But where does the pain usually happen?

Where does it start?

Well, besides these structures, there are many structures, nerves, muscles and arteries in the shoulder and this question cannot be answered easily.

There is something we can do easily that helps us identify which one of these structures causes the pain.

We can perform clinical examination tests and there are two examinations I would like to highlight.

So to test the supraspinatus muscle and its tendon, we can perform the empty can test.

And to test the infraspinatus muscle, we can perform the infraspinatus test.