| Brain: Sulcus limitans |
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| Rhomboid fossa. (Sulcus limitans not labeled, but region is visible.) |
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| Human caudal brainstem posterior view (The sulcus limitans separates #2 from #4.) |
| Latin |
s. limitans fossae rhomboideae |
| Gray's |
subject #187 799 |
| NeuroNames |
hier-626 |
In the floor of the fourth ventricle, the sulcus limitans separates the cranial nerve motor nuclei (medial) from the sensory nuclei (lateral)[1]. 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).
It is seen as slight depressions separating the basal and alar plates.
References
- ^ Nolte, John. The Human Brain 6th ed. p.685. Mosby Inc.
External links
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