In anatomy, a ganglion ( plural ganglia)'s a tissue mass. Cells found in a ganglion are called ganglion cells, though this term's also sometimes used to refer specifically to retinal ganglion cells. Neurology In neurological contexts, ganglia are composed mainly of somata and dendritic structures which are bundled or connected together. Ganglia often interconnect with other ganglia to form a complex system of ganglia known as a plexus. Ganglia provide relay points and intermediary connection… (More on Ganglia)