In the midbrain: Substantia nigra (in Latin meaning “black stuff” (Davis 27-8): This coordinates muscles’ tone and movement. Other parts of the midbrain get sensory info from the eyes, ears, and cerebrum above it. The midbrain helps to control some muscular reflexes. Ex: the pupil’s ability to adjust to different amounts of light is due to the midbrain (Davis 27-28).

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