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Rhinal sulcus
Basal view of diagram of human brain (rhinal sulcus not labeled, but is visible posterior to parahippocampal gyrus.)
Details
Identifiers
Latin	sulcus rhinalis; fissura rhinalis; sulcus rhinicus; fissura rhinica
NeuroNames	41
NeuroLex ID	birnlex_1368
TA98	A14.1.09.240
TA2	5443
FMA	83746
Anatomical terms of neuroanatomy [edit on Wikidata]

In the human brain, the entorhinal cortex appears as a longitudinal elevation anterior to the parahippocampal gyrus, with a corresponding internal furrow, the external rhinal sulcus (or rhinal fissure). The rhinal sulcus separates the parahippocampal uncus from the rest of the temporal lobe in the neocortex.^[1] The rhinal sulcus and the hippocampal sulcus were both present in early mammals.^[1]

It is analogous to the collateral fissure found further caudally in the inferior part of the temporal lobe.

References

^ ^a ^b Ribas, Guilherme Carvalhal (February 2010). "The cerebral sulci and gyri". Neurosurgical Focus. 28 (2). doi:10.3171/2009.11.FOCUS09245.

This article incorporates text in the public domain from page 744 of the 20th edition of Gray's Anatomy (1918)

Superolateral

Prefrontal	Superior frontal gyrus 4 6 8 Middle frontal gyrus 9 10 46 Inferior frontal gyrus: 11 47-Pars orbitalis Broca's area 44-Pars opercularis 45-Pars triangularis Superior frontal sulcus Inferior frontal sulcus
Precentral	Precentral gyrus Precentral sulcus

Medial/inferior

Prefrontal	Superior frontal gyrus 4 6 Medial frontal gyrus 8 9 Paraterminal gyrus/Paraolfactory area 12 Straight gyrus 11 Orbital gyri/Orbitofrontal cortex 10 11 12 Ventromedial prefrontal cortex 10 Subcallosal area 25 Olfactory sulcus Orbital sulcus
Precentral	Paracentral lobule 4 Paracentral sulcus

Both

Superolateral	Superior parietal lobule 5 7 Inferior parietal lobule 40-Supramarginal gyrus 39-Angular gyrus Parietal operculum 43 Intraparietal sulcus
Medial/inferior	Paracentral lobule 1 2 3 5 Precuneus 7 Marginal sulcus
Both	Postcentral gyrus/Primary somatosensory cortex 3, 1 and 2 Secondary somatosensory cortex 5 Posterior parietal cortex 7

Superolateral	Occipital pole of cerebrum Occipital gyri Lateral occipital gyrus 18 19 Lunate sulcus Transverse occipital sulcus
Medial/inferior	Visual cortex 17 Cuneus Lingual gyrus Calcarine sulcus

Superolateral	Transverse temporal gyrus/Auditory cortex 41 and 42 Superior temporal gyrus 38 22/Wernicke's area (Planum temporale) Superior temporal sulcus Middle temporal gyrus 21
Medial/inferior	Occipitotemporal sulcus Fusiform gyrus 37 Medial temporal lobe 27 28 34 35 36 Inferior temporal sulcus Inferior temporal gyrus 20

Superolateral	Central (frontal+parietal) Lateral (frontal+parietal+temporal) Parieto-occipital Preoccipital notch
Medial/inferior	Longitudinal fissure Cingulate (frontal+cingulate) Collateral (temporal+occipital) Callosal sulcus

Parahippocampal gyrus	anterior Entorhinal cortex Perirhinal cortex Postrhinal cortex Posterior parahippocampal gyrus Prepyriform area
Cingulate cortex/gyrus	Subgenual area 25 Anterior cingulate 24 32 33 Posterior cingulate 23 31 Isthmus of cingulate gyrus: Retrosplenial cortex 26 29 30
Hippocampal formation	Hippocampal sulcus Fimbria of hippocampus Dentate gyrus Rhinal sulcus
Other	Indusium griseum Uncus Amygdala

General

Some categorizations are approximations, and some Brodmann areas span gyri.

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