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Prepyriform area

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Brain: Prepyriform area
Latin	Area praepiriformis

Prepyriform area (or prepiriform cortex) is a portion of the rhinencephalon consisting of paleocortex.

Some sources state that it is part of the primary olfactory cortex.^[1]

[edit] References

^ "Anatomy of Olfactory System: eMedicine Clinical Procedures". http://emedicine.medscape.com/article/835585-overview. Retrieved 2009-11-20.

Human brain: forebrain (cerebrum · cerebral cortex · cerebral hemispheres, grey matter) (TA A14.1.09.002–240, 301–320, GA 9.818–826)

Superolateral

Prefrontal	Superior frontal gyrus (4l, 6l, 8l) · Middle frontal gyrus (9l, 10l, 46) Inferior frontal gyrus: 11l · 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 (4m, 6m) · Medial frontal gyrus (8m, 9m) Paraterminal gyrus/Paraolfactory area (12) · Straight gyrus (11m) · Orbital gyri/Orbitofrontal cortex (10m, 11m, 12) · Ventromedial prefrontal cortex (10m) · Subcallosal area (25) Olfactory sulcus · Orbital sulci

Precentral	Paracentral lobule (4) · Paracentral sulcus

Both

Primary motor cortex (4) · Premotor cortex (6) · Supplementary motor area (6) · Frontal eye fields (8)

Superolateral	Superior parietal lobule (5l, 7l) · Inferior parietal lobule (40-Supramarginal gyrus, 39-Angular gyrus) · Parietal operculum (43) Intraparietal sulcus

Medial/inferior	Paracentral lobule (1m, 2m, 3m, 5m) · Precuneus (7m) Marginal sulcus

Both	Postcentral gyrus/primary somatosensory cortex (1 · 2 · 3) · Secondary somatosensory cortex (5) · Posterior parietal cortex (7)

Superolateral	Occipital pole of cerebrum · Lateral occipital gyrus (18, 19) · Lunate sulcus · Transverse occipital sulcus

Medial/inferior	Primary visual cortex (17) · Cuneus · Lingual gyrus Calcarine fissure

Superolateral	Transverse temporal gyrus/Primary auditory cortex (41, 42) · Superior temporal gyrus (38, 22/Wernicke's area) · Middle temporal gyrus (21) · Inferior temporal gyrus (20) Superior temporal sulcus · Inferior temporal sulcus

Medial/inferior	Fusiform gyrus (37) Medial temporal lobe (27 · 28 · 34 · 35 · 36) Inferior temporal sulcus

Interlobar
sulci/fissures

Superolateral	Central (frontal+parietal) · Lateral (frontal+parietal+temporal) · Parieto-occipital · Preoccipital notch

Medial/inferior	Medial longitudinal · Cingulate (frontal+cingulate) · Collateral (temporal+occipital) · Callosal sulcus

Parahippocampal gyrus	anterior (Entorhinal cortex, Perirhinal 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	Supracallosal gyrus · Uncus

Long gyrus of insula · Short gyri of insula · Circular sulcus of insula

General

Operculum · Poles of cerebral hemispheres

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

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

Sensory system: Olfactory system / Olfaction / Rhinencephalon (TA 15.1, GA 10.992)

Olfactory epithelium

Olfactory glands · Olfactory mucosa · Sustentacular cell

Olfactory nerve: 1° neuron

Olfactory receptor neurons (Olfactory receptor) → Olfactory bulb (Glomeruli)

Olfactory nerve: 2° neuron

Mitral cells → Olfactory tract → Olfactory trigone

Lateral olfactory stria/
Primary olfactory cortex

Piriform cortex · EC-hippocampus system (Entorhinal cortex, Hippocampal formation) · Prepyriform area · Periamygdaloid cortex

Stria medullaris → Habenular nuclei

Amygdala → Stria terminalis → Hypothalamus

Medial forebrain bundle → Hypothalamus

Medial olfactory stria

Anterior olfactory nucleus

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