<prompt> Parasympathetic stimulation causesSweat secretionDecreased GI secretionPupillary constrictionBronchoconstriction  <response>: C Pupillary constriction Parasympathetic effects on the organ systems: GIT: Molility and tone are increased; Secretions are increased; Sphincters are relaxed usually Lungs: Bronchial muscles undergo contraction; Bronchial glands are stimulated Eyes: Radial muscle of Iris has no action; Sphincter muscle of Iris -- contraction; Ciliary muscle: contraction for near vision Sweat glands: No response to parasympathetic stimulation. While sweat glands respond to cholinergic stimulation by genized increase in secretion they do not parasympathetic stimulation by the same. 