,I turned my attention back to the ulnar nerve and it is located immediately posterior to the medial intramuscular septum in the upper arm, and I dissected it all the way proximally until I encountered the location with ulnar the nerve passed from the anterior to the posterior compartments in the upper portion of the arm. 
,I turned my attention back to the ulnar nerve and it is located immediately posterior to the medial intramuscular septum in the upper arm , and I dissected it all the way proximally until I encountered the location with ulnar the nerve passed from the anterior to the posterior compartments in the upper portion of the arm .