inferior ramus of the arcuate sulcus ( iras )

The term inferior ramus of the arcuate sulcus refers to the lower, diagonal branch of the arcuate sulcus in the frontal lobe of the macaque. Defined by dissection, it separates the precentral gyrus caudally from the inferior frontal gyrus rostrally ( Martin-2000 ). Architectonically it separates the premotor cortex caudally from the dorsolateral prefrontal cortex rostrally. It may be homologous to the inferior precentral sulcus of the adult human ( See arcuate sulcus for details. ) Equivalent structures are not found in the smooth cerebral cortex of the rat or mouse ( NeuroNames ).

Also known as

Name Language Source Source Citation Source Title Organism
arc3 acronym Vogts-1919 Journal für Psychologie und Neurologie, 25:1:361-376, 1919 Allgemeinere Ergebnisse unserer Hirnforschung. Dritte Mitteilung. Die architektonische Rindenfelderung im Lichte unserer neuesten Forschungen Cercopithecus aethiops
Ramus inferior sulcus arcuatus Latin NeuroNames University of Washington, Seattle, WA NeuroNames macaque
vertical arcuate sulcus English Krieg-1975 Brain Books, Evanston, Illinois, 1975 Interpretive Atlas Of The Monkey's Brain Macaca mulatta
vertical ramus of arcuate sulcus English Walker-1940 Journal of Comparative Neurology, 73:59-86, 1940 A cytoarchitectural study of the prefrontal area of the macaque monkey macaque
iras acronym Martin-2000 Elsevier, Amsterdam, 2000 Primate Brain Maps: Structure Of The Macaque Brain macaque
inferior arcuate sulcus English Matelli-2004 Chapter 26 in The Human Nervous System, G. Paxinos and J. Mai (Eds.). Amsterdam: Elsevier Academic Press, 2004. Motor Cortex macaque
iar acronym Paxinos-2009a Amsterdam: Elsevier-Academic Press. 2009 The Rhesus Monkey Brain, Second Edition Macaca mulatta
inferior ramus of the arcuate sulcus English Szabo-1984 J Comp Neurol 1984 Jan 10;222(2):265-300 A stereotaxic atlas of the brain of the cynomolgus monkey (Macaca fascicularis) Macaca fascicularis
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