Video 1 from the Jarvis Physical Examination and Health Assessment Video Series begins with a review of the corticospinal and extrapyramidal tracts, the cerebellar system, and the reflex arc. The motor system examination shows how to assess the muscles and cerebellar function by testing balance, coordination, and skilled movements. The reflex examination provides general guidelines and then demonstrates how to elicit deep tendon reflexes in the arms and legs as well as common superficial reflexes.