Created by Matthew Barry Jensen.
Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/organ-systems/biological-basis-of-behavior-the-nervous-system/v/upper-motor-neurons?utm_source=YTutm_medium=Descutm_campaign=mcat
Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/organ-systems/biological-basis-of-behavior-the-nervous-system/v/autonomic-nervous-system?utm_source=YTutm_medium=Descutm_campaign=mcat
MCAT on Khan Academy: Go ahead and practice some passage-based questio
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