: ganglia) is a group of neuron cell bodies in the peripheral nervous system.

Ganglia are primarily made up of somata and dendritic structures, which are bundled or connected.

Ganglia provide relay points and intermediary connections between different neurological structures in the body, such as the peripheral and central nervous systems.

[1] However, in the brain (part of the central nervous system), the basal ganglia are a group of nuclei interconnected with the cerebral cortex, thalamus, and brainstem, associated with a variety of functions: motor control, cognition, emotions, and learning.

[citation needed] Partly due to this ambiguity, the Terminologia Anatomica recommends using the term 'basal nuclei' instead of 'basal ganglia'; however, this usage has not been generally adopted.