what is the difference between the clusters of cell bodies called nuclei and those known as ganglia?
In this system, clusters of cell bodies are called ganglia. Nuclei are the most common arrangements of neurons in the body. For example, the structures of the brain called the thalamus and the hypothalamus are made up entirely of nuclei. These clusters of cell bodies make up most of the grey matter in the brain. Ganglia string together to form a plexus..