The sulcus limitans is found in the fourth ventricle of the brain. It separates the cranial nerve motor nuclei (medial) from the sensory nuclei (lateral). It can also be located by searching laterally from the medial eminence. It is parallel to the median sulcus. References External links Diagram of the sulcus limitans Sectional Atlas: Pons at the Abducens Nucleus - Facial Colliculus Brainstem