<prompt> Answer this question truthfullyWhat is the neurotransmitter released by the postganglionic sympathetic fibers that innervate sweat glands, despite sweat glands being part of the sympathetic pathway?  <response>: <reason> Despite sweat glands being part of the sympathetic pathway, the neurotransmitter released by the postganglionic sympathetic fibers that innervate sweat glands is acetylcholine. 