Causes of a brachial plexus injury. Brachial plexus injury (BPI) is an umbrella term for a variety of conditions that may impair function of the brachial plexus nerve network. The majority of pediatric and adult brachial plexus injuries are caused by trauma. The most common inciting events may include:auses of a brachial plexus injury. Brachial plexus injury (BPI) is an umbrella term for a variety of conditions that may impair function of the brachial plexus nerve network. The majority of pediatric and adult brachial plexus injuries are caused by trauma. The most common inciting events may include:
frustration meaning, definition, what is frustration: the feeling of being annoyed or less confident because you cannot achieve what you wantâ¦. Learn more.
âº making you âfeel âannoyed, âdisappointed, or âdiscouraged: I âguess âjob âopportunities at the âtop are âimproving for women, but itâs such a âslow âprocess that itâs frustrating. (Definition of frustrating from the Cambridge Academic Content Dictionary Â© Cambridge University Press).