The adrenal medulla is considered by some to be a "misplaced" sympathetic ganglion since embryologically, they arise from the same tissue.

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The adrenal medulla and sympathetic ganglia both arise from the neural crest during embryonic development. Therefore, some consider the adrenal medulla to be a "misplaced" sympathetic ganglion as it shares many similarities with sympathetic ganglia, including the release of catecholamines (epinephrine and norepinephrine) in response to stress or stimulation of the sympathetic nervous system.

The Adrenal Medulla Is Considered by Some to Be a "Misplaced