red nucleus

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A large nucleus (2) in the front of the tegmentum of the midbrain in each hemisphere, receiving inputs from the motor cortex and the cerebellum and sending outputs to the inferior olivary nucleus on the same side and also to the cerebellum, the reticular formation, and the thalamus. It is involved in movement control in distal muscles, including those of the hands and feet. See also rubrospinal tract. [So called because of its reddish appearance, which results from its high iron content]

Subjects: Psychology.

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