Parasympathetic Preganglionic Fibers Leave the CNS in All of the Following

Question

Parasympathetic preganglionic fibers leave the CNS in all of the following locations except
A) the midbrain.
B) the pons.
C) the medulla oblongata.
D) spinal segments T1-L2.
E) spinal segments S2-S4.

Accepted Answer

Parasympathetic preganglionic fibers originate in the brainstem (midbrain, pons, medulla oblongata) and in the sacral spinal cord segments (S2-S4), but not in the thoracolumbar segments (T1-L2), which are associated with the sympathetic nervous system.