Question: is epinephrine part of the sympathetic nervous system

title: Sympathetic nervous system
text: Postganglionic neurons of sweat glands and chromaffin cells of the adrenal medulla . Postganglionic neurons of sweat glands release acetylcholine for the activation of muscarinic receptors , except for areas of thick skin , the palms and the plantar surfaces of the feet , where norepinephrine is released and acts on adrenergic receptors . Chromaffin cells of the adrenal medulla are analogous to post-ganglionic neurons ; the adrenal medulla develops in tandem with the sympathetic nervous system and acts as a modified sympathetic ganglion . Within this endocrine gland , pre-ganglionic neurons synapse with chromaffin cells , triggering the release of two transmitters : a small proportion of norepinephrine , and more substantially , epinephrine . The synthesis and release of epinephrine as opposed to norepinephrine is another distinguishing feature of chromaffin cells compared to postganglionic sympathetic neurons . Postganglionic sympathetic nerves terminating in the kidney release dopamine , which acts on dopamine D1 receptors of blood vessels to control how much blood the kidney filters . Dopamine is the immediate metabolic precursor to norepinephrine , but is nonetheless a distinct signaling molecule . 

Answer: answer: Yes, chromaffin cells of the adrenal medulla are analogous to post-ganglionic neurons ; the adrenal medulla develops in tandem with the sympathetic nervous system and acts as a modified sympathetic ganglion. The synthesis and release of epinephrine as opposed to norepinephrine is another distinguishing feature of chromaffin cells compared to postganglionic sympathetic neurons .