regional part of brain premotor cortex true secondary motor cortex promotor cortex FMA:224852 nonprimary motor cortex premotor cortex The premotor cortex is an area of motor cortex lying within the frontal lobe of the brain. It extends 3 mm anterior to the primary motor cortex, near the Sylvian fissure, before narrowing to approximately 1 mm near the medial longitudinal fissure, which serves as the posterior border for the prefrontal cortex. The premotor cortex is largely equivalent to Brodmann area 6. Activity within this region is critical to the sensory guidance of movement and control of proximal and trunk muscles of the body. UBERON:0016634 premotor area MBA:993 intermediate precentral cortex DHBA:10168 uberon premotor cortex (area 6) secondary motor areas secondary somatomotor areas premotor region premotor