Orbital part of inferior frontal gyrus: Information from Answers.com

Brain: Orbital part of inferior frontal gyrus

Lateral surface of left cerebral hemisphere, viewed from the side. (Pars opercularis visible near center).

Brodmann area 44
Latin	pars opercularis gyri frontalis inferioris
Part of	Inferior frontal gyrus Broca's area
Artery	Middle cerebral
Acronym(s)	OpIFG
NeuroNames	hier-69

In the human brain the Pars opercularis (literally "the part that covers") is the part of the inferior frontal gyrus that lies between the inferior precentral sulcus and the ascending ramus of the lateral sulcus. It is called opercularis because it covers part of the insula. The pars opercularis together with the pars triangularis form Broca's area.

References

Superolateral	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) Prefrontal cortex (Ventromedial) · Premotor cortex Precentral sulcus · Superior frontal sulcus · Inferior frontal sulcus

Medial/inferior	Subcallosal area · Paraterminal gyrus · Paraolfactory area · Straight gyrus · Paracentral lobule Orbitofrontal cortex (10, 11, 12, 47) Olfactory sulcus

Superolateral	Somatosensory cortex (Primary (1 · 2 · 3 · 43) · Secondary (5)) · Parietal operculum Parietal lobules (Superior (7l) · Inferior (40)) · Angular gyrus (39) Intraparietal sulcus

Medial/inferior	Paracentral lobule · Precuneus (7m) Marginal sulcus

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

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

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

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

General

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

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