RT Book, Section A1 Gharibo, Christopher A1 Aydin, Steve A2 Diwan, Sudhir A2 Staats, Peter S. SR Print(0) ID 1107199771 T1 Suprascapular Nerve Block T2 Atlas of Pain Medicine Procedures YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071738767 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1107199771 RD 2024/03/28 AB The suprascapular nerve is a branch off the brachial plexus that arises from the C5-C6 nerve roots. It has afferent, efferent, and sympathetic fibers. Seventy percent of the afferent input travels via the suprascapular nerve; specifically, it provides sensory input from the scapula, acromioclavicular joint, and posterior and superior shoulder joint. Its efferent component innervates the supraspinatus and infraspinatus muscles.