Which of the following is true of the structures of the sympathetic chain
A)Preganglionic sympathetic neurons are located in the cervical and thoracic regions only.
B)Each chain contains about 3 cervical, 11 thoracic, 4 lumbar, and 4 sacral sympathetic ganglia.
C)These nerves have white rami, but lack gray rami.
D)About 8 percent of the axons of each spinal nerve are parasympathetic postganglionic fibers.
E)None of the answers are correct.

Question

Quizplus · Accepted Answer

The sympathetic chain contains about 3 cervical, 11 thoracic, 4 lumbar, and 4 sacral sympathetic ganglia. The other options are incorrect. Preganglionic sympathetic neurons are located in the thoracolumbar region, not just the cervical and thoracic regions (A). Sympathetic nerves have both white and gray rami, not lacking gray rami (C). Each spinal nerve has about 98 percent somatic sensory, somatic motor, and visceral sensory axons, and only 2 percent visceral motor (not parasympathetic postganglionic) fibers (D).

Which of the Following Is True of the Structures of the Sympathetic