All are true about right phrenic nerve except?: (A) Motor branch, (B) Sensory branch, (C) Arises from C4, (D) Longer course than left Phrenic nerve
Answer is D. The phrenic nerve is a mixed nerve which gives its sole motor supply to the diaphragm. Arises from C3-5 mainly from C4 the right phrenic nerve is shoer and more veical than left. Ref: BD Chaurasia 4th ed vol 2 Page 311