The sulcus limitans is a groove on either side of the midline in the rhomboid fossa (floor of the fourth ventricle).[1] It separates the cranial nerve motor nuclei (located medial), and the sensory nuclei (located lateral).[2][1] It is parallel to the median sulcus.[citation needed]
| Sulcus limitans | |
|---|---|
 Rhomboid fossa. (Sulcus limitans not labeled, but region is visible.) | |
 Human caudal brainstem posterior view (The sulcus limitans separates #2 from #4.) | |
| Details | |
| Identifiers | |
| Latin | sulcus limitans fossae rhomboideae |
| NeuroNames | 629 |
| Anatomical terms of neuroanatomy | |
