A dorsal root ganglion (DRG) from a chicken embryo (around stage of day 7) after incubation overnight in NGF growth medium stained with anti-neurofilament antibody. Note the axons growing out of the ganglion.
Ganglia are primarily made up ofsomata anddendritic structures, which are bundled or connected. Ganglia often interconnect with other ganglia to form a complex system of ganglia known as aplexus. Ganglia provide relay points and intermediary connections between different neurological structures in the body, such as theperipheral andcentral nervous systems.
Among vertebrates there are three major groups of ganglia:
Partly due to this ambiguity, theTerminologia Anatomica recommends using the term 'basal nuclei' instead of 'basal ganglia'; however, this usage has not been generally adopted.[citation needed]
A pseudoganglion is a localized thickening of the main part or trunk of a nerve that has the appearance of a ganglion[2] but has only nerve fibers and no nerve cell bodies.
