Proximal: The muscles of the upper arm include the deltoid and the rotator cuff muscles that move the proximal arm and shoulder. They are important in positioning the hand in various positions in activities of daily living and as such are extremely important for daily functioning. There are multiple potential causes of weakness in this area.
Answered 5/2/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
5 doctors weighed in across 2 answers
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