Which of the Following is Not True of the Median,radial,and

Question

Which of the following is not true of the median,radial,and ulnar nerves?
A) Innervate the muscles of the upper extremities
B) Spinal nerves
C) Mixed nerves
D) Emerge from the cervical plexus

Accepted Answer

The median, radial, and ulnar nerves are all spinal nerves that innervate the muscles of the upper extremities and are considered mixed nerves. However, they do not emerge from the cervical plexus. The median nerve emerges from the brachial plexus, while the radial and ulnar nerves emerge from the posterior cord and medial cord of the brachial plexus, respectively.