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Anatomically, the adrenal medulla develops from neural crest tissue, and it is directly controlled by sympathetic NS. The medullary cells respond to this stimulation by releasing epineprhrine (80%)...
Sympathetic Nervous System:If you think of it as "fight or flight" it becomes a lot easier to remember how it works. It increases the heart rate, increases energy production, decreases the GI system...
The sympathetic nervous system is part of the autonomic nervous system and it acts best described as "fight or flight". It stimulates your body into preparing itself against something. You're...