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Orbital gyri

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Title: Orbital gyri  
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Subject: Orbital sulcus, Gyri, Medial frontal gyrus, Paracentral sulcus, Posterior parahippocampal gyrus
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Orbital gyri

Orbital gyri
Human brain bottom view. Orbital gyri shown in green.
Orbital surface of left frontal lobe. Orbital gyri shown in orange.
Details
Latin gyrus orbitales
Identifiers
Gray's p.822
NeuroLex ID Orbital gyri complex
FMA FMA:72020
Anatomical terms of neuroanatomy

The inferior or orbital surface of the frontal lobe is concave, and rests on the orbital plate of the frontal bone. It is divided into four orbital gyri by a well-marked H-shaped orbital sulcus. These are named, from their position, the medial, anterior, lateral, and posterior orbital gyri. The medial orbital gyrus presents a well-marked antero-posterior sulcus, the olfactory sulcus, for the olfactory tract; the portion medial to this is named the straight gyrus, and is continuous with the superior frontal gyrus on the medial surface.

Function

Bailey and Bremer reported that stimulation to the central end of the vagus nerve caused electrical activity in the inferior orbital surface (http://brain.oxfordjournals.org/cgi/pdf_extract/75/2/244)

Additional images

External links

  • http://anatomy.med.umich.edu/atlas/n1a2p13.html

This article incorporates text from a public domain edition of Gray's Anatomy.


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