Which of the following nerves is labeled A in the diagram?
A)phrenic nerve
B)ulnar nerve
C)intercostal nerve
D)femoral nerve
E)tibial nerve

Question

Which of the following nerves is labeled A in the diagram? 
A)phrenic nerve 
B)ulnar nerve 
C)intercostal nerve 
D)femoral nerve 
E)tibial nerve

Quizplus · Accepted Answer

The nerve labeled A in the diagram is the phrenic nerve, which arises from the cervical spine (C3-C5) and innervates the diaphragm muscle, playing a vital role in breathing. The other nerves listed do not have this function or originate from the same spinal levels.

Which of the Following Nerves Is Labeled a in the Diagram