part of part of Macaca sulcus of brain frontal lobe arcuate sulcus NLX:153910 Composite sulcus of the frontal lobe of the macaque. Located on the dorsolateral surface, it consists of the superior ramus of the arcuate sulcus (macaque), the inferior ramus of the arcuate sulcus and the spur of the arcuate sulcus (macaque) (neuronames:2379). inferior precentral sulcus (Walker) arcuate sulcus sulcus arcuata sulcus arcuatus neuronames:2379 UBERON:0034671 sulcus arcuatis