annectant gyrus - BrainInfo

annectant gyrus (ANN)

The term annectant gyrus (ANN) refers to a buried convolution of the parietal lobe (PLB) defined by dissection in the human ( Duvernoy-1992 ) and the macaque ( Martin-2000 ). It is located caudally in the floor of the intraparietal sulcus (ips) of the macaque ( Kappers-1960 ). It extends a short way along the floor of the lunate sulcus of the human (lush) at its junction with the ips ( Martin-2000; Dubach-2008, Duvernoy-1992 ). In the human, small topologically similar but unnamed convolutions appear in the depths of the ips as well ( Duvernoy-1992; Mai-1997 ). Equivalent structures are not found in the smooth cerebral cortex of the rat or mouse ( NeuroNames ). In the macaque, ANN is the location of histologically defined area V3D caudally and area V3A rostrally ( Paxinos-2009a ). Updated 28 May 2025.

Also known as: annectant gyrus, Gyrus annectens, convolutions of Gratiolet

NeuroNames ID: 153

All Names & Sources

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Showing 6 synonym(s) - Use arrows to navigate

Showing 6 synonym(s)

Name:

Language:

acronym

Organism:

macaque

Source:

Martin-2000

Citation:

Elsevier, Amsterdam, 2000

Source Title:

Primate Brain Maps: Structure Of The Macaque Brain

Name:

annectant gyrus

Language:

English

Organism:

Macaca fascicularis

Source:

Martin-1997

Citation:

Primate Information Center, University of Washington, Seattle, 1997.

Source Title:

Template Atlas of the Primate Brain

Name:

Gyrus annectens

Language:

Latin

Organism:

macaque

Source:

NeuroNames

Citation:

University of Washington, Seattle, WA

Source Title:

NeuroNames

Name:

convolutions of Gratiolet

Language:

English

Organism:

Unspecified

Source:

Crosby-1962

Citation:

New York: MacMillan, 1962

Source Title:

Correlative Anatomy of the Nervous System

Name:

annectant gyrus

Language:

English

Organism:

macaque

Source:

Van Essen-1978

Citation:

J Physiol 1978 Apr;277:193-226

Source Title:

The topographic organization of rhesus monkey prestriate cortex

Name:

ANN

Language:

acronym

Organism:

macaque

Source:

NeuroNames

Citation:

University of Washington, Seattle, WA

Source Title:

NeuroNames

Illustrations

Showing 2 illustration(s)

labeled line drawings of
sagittal section in
Macaca fascicularis

multiple views of
3D reconstruction in
Macaca mulatta

No specie structures found

No specie structures available for this concept.

Models Where It Appears

Structural CNS Model - Macaque

Brain structures of the macaque are illustrated in BrainInfo’s NeuroMaps macaque brain atlas. Structures are grouped by proximity in a hierarchy corresponding to the central nervous system hierarchy of NeuroNames ( Bowden-1995 Martin-2000 ). Structures in the NeuroMaps atlas are based on the segmentation of an MRI of the brain of a 3-year old male rhesus macaque (Macaca mulatta). The atlas is most useful for targeting structures for implantating electrodes and chemtrodes. Updated 29 Oct 2025.

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