The different tracts within indirect motor pathways are grouped according to their primary functions. The lateral pathway controls
A. respiratory rhythm and CO2 levels.
B. muscle tone and gross movements of the muscles of the head, neck, proximal limb, and trunk.
C. precise, discrete movements and tone in flexor muscles of the limbs.
D. smooth muscle contraction in the viscera.
E. heartbeat and blood pressure.
Answer: C
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