Description: | This region refers to the combined area of the cerebrum and the optic lobe. Developmentally it consists of three neuromeres: the protocerebrum, deutocerebrum, and tritocerebrum. It lies above, around, and partially below the esophagus foramen of the brain, in contrast to the gnathal ganglia (GNG). (Note: the region has traditionally been called the supraesophageal ganglion. But because some of its region lies below the esophagus, we here emply a newly proposed term cerebral ganglia.) |