neurosurgery written board crash course, neurosurgery written board review, neurosurgery primary exam, neuroanatomy, Massa intermedia, intrathalamic adhesion, paraventricular nucleus, Centromedian nucleus, Parafascicular nucleus, Rostral intralaminar nucleus, External medullary lamina, internal medullary lamina, Anterior nucleus, Dorsomedial nucleus, Korsakoff’s psychosis, frontal lobectomy