Identifier: 20160303_nanos_ocularmotility1_03-1 Title: Ocular Motility Disorders Due to Brainstem Disease Author: Eric R. Eggenberger, DO, MSEpi History: The brainstem is a complex series of nuclei and interconnections divided into 3 primary component, midbrain, pons and medulla. The conceptual framework of a house serves as a model to teach the brainstem anatomy. The attic is the “Mickey Mouse” shaped midbrain, overlying the 1st floor “bridge” of the pons, and the “butterfly” basement of the medulla. These 3 structures share rich connections with the cerebellum (the “garage” of the posterior fossa house). Subject: Brainstem, Eye Movements, Saccades