John is a 22-year-old professional skateboarder. He has recently fallen on his left shoulder which caused a severe dislocation of the joint. The clinician fears the impact and the dislocation may have caused damage to all or part of the brachial plexus. After performing a nerve conduction velocity test on Johnâs left arm, it was determined that the ulnar nerve was compromised. Which area of the brachial plexus was affected by the accident?

The lower left area where the brachial plexus is, was affected in the axillary fossa.

Specifically in the area of the inferior nerve ramification, in the medial endings.

Explanation:

The brachial plexus is a nervous plexus that is classified into three nerve areas, the upper middle and lower areas, where the upper one faces the lateral nerve branches, the middle one to the posterior, and the lower one to the medial, within the medial nerves. is the ulnar nerve or the ulnar nerve that is the one that damaged John.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.