Parasympathetic Ganglion
Parasympathetic ganglia are the autonomic ganglia of the parasympathetic nervous system. Most are small terminal ganglia or intramural ganglia, so named because they lie near or within (respectively) the organs they innervate. The exceptions are the four paired parasympathetic ganglia of the head and neck.
Read more about Parasympathetic Ganglion: Parasympathetic Ganglia of The Head and Neck, Roots, Nerves Supplying Parasympathetic Fibers