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As you extend your arm, two tracts work together to maintain posture and muscle tone. Muscles in your proximal limb will be excited by the __?__ and inhibited by the __?__. Select the correct pair.corticobulbar tractlateral reticulosppinal tractmedial reticulospinal tractrubrospinal tracttectospinal tractvestibulospinal tractA.2 and 3 B.1 and 4 C.4 and 5 D.2 and 6 E.5 and 6
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