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In animal anatomy, the rhinencephalon is a part of the brain involved with olfaction.
Some references classify other areas of the brain related to perception of smell as rhinencephalon, but the areas of human brains that receive fibers strictly from the olfactory bulb are limited to those of the paleopallium. As such, the rhinencephalon includes the olfactory bulb, the olfactory tract, the olfactory tubercle and striae, the anterior olfactory nucleus and parts of the amygdala and the piriform cortex.
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| Brain: telencephalon (cerebrum, cerebral cortex, cerebral hemispheres) |
|---|
| Frontal lobe | Precentral gyrus (Primary motor cortex, 4)
Superior frontal gyrus/Frontal eye fields (6, 8, 9), Middle frontal gyrus (46), Inferior frontal gyrus/Broca's area (44-Pars opercularis, 45-Pars triangularis)
Orbitofrontal cortex (10, 11, 12, 47)
Precentral sulcus - Superior frontal sulcus - Inferior frontal sulcus - Olfactory sulcus |
|---|
| Parietal lobe | Somatosensory cortex (Primary (1, 2, 3, 43), Secondary (5)), Precuneus (7m)
Parietal lobules (Superior (7l), Inferior (40)), Angular gyrus (39)
Intraparietal sulcus, Marginal sulcus |
|---|
| Occipital lobe | Primary visual cortex (17), (Cuneus, Lingual gyrus, Lateral occipital gyrus (18, 19))
Calcarine fissure |
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| Temporal lobe | Primary auditory cortex (41, 42), Superior temporal gyrus (38, 22/Wernicke's area), Middle temporal gyrus (21), Inferior temporal gyrus (20)
Fusiform gyrus (37) Medial temporal lobe (Amygdala, Parahippocampal gyrus (27, 28, 34, 35, 36) |
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| Cingulate cortex/gyrus | Subgenual area (25), Anterior cingulate (24, 32, 33), Posterior cingulate (23, 31), Retrosplenial cortex (26, 29, 30)
Callosal sulcus |
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| Interlobar sulci/fissures | lateral: Central (frontal+parietal), Lateral (frontal+parietal+temporal), Parietoöccipital
medial: Medial longitudinal, Cingulate (frontal+cingulate), Collateral (temporal+occipital) |
|---|
| White matter tracts | Commissural fibers - Association fibers
Internal capsule (Anterior limb, Genu, Posterior limb), Corona radiata, External capsule, Lamina terminalis, Extreme capsule, Semioval center
Olfactory tract, Terminal stria |
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| Other | Insular cortex
gray: Olfactory bulb, Anterior olfactory nucleus, Basal optic nucleus of Meynert, Substantia innominata, Anterior perforated substance
Corpus striatum - Limbic lobe |
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| Some categorizations are approximations, and some Brodmann areas span gyri. |
lt:Uodžiamosios smegenys
no:Rhinencephalon
