select all of the changes that occur upon sympathetic stimulation. check all that apply vasoconstriction of blood vessels to salivary glands, resulting in thick, viscous saliva vasoconstriction of blood vessels to salivary glands, resulting in thick, viscous saliva contraction of smooth muscle in the gi tract wall contraction of smooth muscle in the gi tract wall relaxation of smooth muscle in the urinary bladder wall and contraction of the internal urethral sphincter relaxation of smooth muscle in the urinary bladder wall and contraction of the internal urethral sphincter stimulates the release of insulin from the pancreas
