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A ganglion located in the coccygeal plexus and forming the lower termination of the two sympathetic trunks; sometimes absent.  

One of the parasympathetic ganglia (otic, pterygopalatine, and submandibular) in the head.  

One of a pair of prevertebral or collateral ganglia located near the origin of the celiac artery. Together they form a part of the celiac plexus.  

A ganglion formed by filamentous threads from the carotid plexus beneath the carotid artery.  

Superficial and deep cardiac plexuses that contain autonomic nerves and branches of the left vagus nerve. They are located on the right side of the ligamentum arteriosus.