Injury to erbs point (upper trunk) in the brachial plexuses causes erbs palsy commonly occurs in RTA, or birth injury in neonates
Damage to upper trunk of brachial plexus.specifically a point where 6nerves meet
Duchenne palsy is a paralysisof the arm caused by injury to the upper group of the arm's main nerves, specifically the severing of the upper trunk C5–C6 nerves. These form part of the brachial plexus, comprising the ventral rami of spinal nerves C5–C8 and thoracic nerve T1.