What is the primary function of the basilar section of the brainstem?
A. Controls or modulates motor activity
B. Regulates eye reflexes
C. Regulates reflexive head movements
D. Adjusts general level of neural activity
ANS: A
Rationale: The longitudinal sections of the brainstem are the basilar, the tegmentum, and, in the midbrain, the tectum. The basilar section contains descending motor tracts and motor nuclei involved in controlling or modulating motor activity. The tegmentum is involved in adjusting the general level of neural activity, integrating sensory information, and cranial nerve functions. The tectum regulates eye reflexes and reflexive head movements.
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