<prompt> Nerve Fibres innervating sweat glands release the following at their endingsNoradrenalineAcetylcholineDopamineHistamine  <response>: B Acetylcholine Sympathetic cholinergic system serves two important function. Sweat gland: Secretion of sweat Vasodilation in skeletal Muscles: A part of the neurons to blood vessels in skeletal muscles are anatomically sympathetic secrete acetylcholine. Simulation of this system of neurons produces vasodilatation in skeletal muscles. 