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Adrenal Medulla

The inner portion of the Adrenal Gland. Derived from Ectoderm, adrenal medulla consists mainly of Chromaffin Cells that produces and stores a number of Neurotransmitters, mainly Adrenaline (Epinephrine) and Norepinephrine. The activity of the adrenal medulla is regulated by the Sympathetic Nervous System.