Drugs Acting on the Sympathetic Nervous System 81 ⑧ CNS: drive Eyes: alertness↑ pupillary dilation Saliva: little,visoous Bronchi: dilation Heart: Skin: rate perspiration foce↑ (cholinergic) blood pre8sure↑ ● Fat tissue: lipolysis fatty acid liberation Liver: glycogenolysis Bladder: glucose release Sphincter tonef detrusor muscle Gl-tract: peristalsis sphincter tonef blood flow Skeletal muscle: blood fow↑ glycogenotysist A.Responses to sympathetic activation