White rami are associated only with thoracic spinal nerves and the first two or three lumbar spinal nerves. Gray rami are associated with all 31 pairs of spinal nerves.
A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The second statement is true; the first is false.

Question

Quizplus · Accepted Answer

Both statements accurately describe the distribution of white and gray rami communicantes in the autonomic nervous system. White rami carry preganglionic sympathetic fibers to the sympathetic chain and are limited to thoracic and upper lumbar nerves, while gray rami, carrying postganglionic fibers, are associated with all spinal nerves.

White Rami Are Associated Only with Thoracic Spinal Nerves and the First