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Brainstem and Cranial Nerves: Longitudinal Brainstema 

Brainstem and Cranial Nerves: Longitudinal Brainstema
Chapter:
Brainstem and Cranial Nerves: Longitudinal Brainstema
Source:
Mayo Clinic Neurology Board Review
Author(s):

Kelly D. Flemming

and Paul W. Brazis

DOI:
10.1093/med/9780190214883.003.0011

This chapter will review pathways that are not at a single level of the brainstem, but rather involve multiple areas with supratentorial input. These include autonomic pathways, the reticular formation and chemically defined groups, and coordination of eye movements. The sympathetic fibers travel from the hypothalamus to the intermediolateral column in the spinal cord through the lateral brainstem. Patients with a unilateral lesion of the lateral brainstem may develop ipsilateral Horner syndrome. The ventrolateral medulla is also a sympathetic region of the brainstem. It projects to the spinal cord and is involved in the innervation of blood vessels in the limbs.

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