Sulcus limitans

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This article is about the structure in the fourth ventricle. For the structure in the developing nervous system, see Sulcus limitans (neural tube).

Brain: Sulcus limitans
Rhomboid fossa. (Sulcus limitans not labeled, but region is visible.)
File:Human caudal brainstem posterior view description.JPG
Human caudal brainstem posterior view (The sulcus limitans separates #2 from #4.)
Latin	s. limitans fossae rhomboideae
Gray's	subject #187 799
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Artery	{{{Artery}}}
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BrainInfo/UW	hier-626
MeSH	[1]

In the floor of the fourth ventricle, the sulcus limitans separates the cranial nerve motor nuclei (medial) from the sensory nuclei (lateral). In the superior part of the rhomboid fossa, it corresponds with the lateral limit of the fossa and presents a bluish-gray area, the locus ceruleus (which owes its color to an underlying patch of deeply pigmented nerve cells, termed the substantia ferruginea).

External links

• Diagram at susqneuro.com
• http://isc.temple.edu/neuroanatomy/lab/atlas/panfc/

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

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