Inferior frontal sulcus

*Inferior frontal sulcus*
Inferior frontal sulcus
	250px Lateral surface of left cerebral hemisphere, viewed from the side. Inferior frontal sulcus labeled at center.
Details
Part of	Frontal lobe
System	Nervous system
Artery	Middle cerebral artery
Vein	Superior sagittal sinus
Identifiers
Latin	sulcus frontalis inferior
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TH	{{#property:P1694}}
TE	{{#property:P1693}}
FMA	{{#property:P1402}}
	Anatomical terms of neuroanatomy [[[d:Lua error in Module:Wikidata at line 865: attempt to index field 'wikibase' (a nil value).\|edit on Wikidata]]]

Gray726 Inferior frontal sulcus

Gray725 interior frontal sulcus

Inferior frontal sulcus animation small.gif

FrontalCaptsLateral

Human brain lateral view description 2

The inferior frontal sulcus (sulcus frontalis inferior) is a prominent groove on the lateral surface of the frontal lobe of the cerebral cortex. It runs parallel to the superior frontal sulcus and separates the middle frontal gyrus from the inferior frontal gyrus.

Anatomy[edit | edit source]

The inferior frontal sulcus is located in the frontal lobe of the brain. It extends horizontally from the precentral sulcus to the anterior part of the frontal lobe. The sulcus is bordered superiorly by the middle frontal gyrus and inferiorly by the inferior frontal gyrus.

Function[edit | edit source]

The regions surrounding the inferior frontal sulcus are involved in various high-level cognitive functions. The inferior frontal gyrus, which lies just below the sulcus, is associated with language processing, particularly in the left hemisphere where it includes Broca's area, a region critical for speech production.

Clinical significance[edit | edit source]

Damage to the areas around the inferior frontal sulcus, particularly the inferior frontal gyrus, can result in language deficits such as Broca's aphasia. This condition is characterized by difficulties in speech production and writing, while comprehension generally remains intact.

Related structures[edit | edit source]

References[edit | edit source]

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