240 Chapter 6 Sympathetic division Parasympathetic division Dilates pupil Constricts pupil Oculomotor nerve (CN III) Stimulates salivation and lacrimation Inhibits salivation and lacrimation Facial nerve (CN VII) Glossopharyngeal nerve (CN IX) Cranial Superior cervical ganglion Cervical Constricts airways Dilates airways T4 Thoracic Accelerates heartbeat Stimulates secretion by sweat glands T3 Piloerection T7 T8 Hair follicle Celiac ganglion T9 T10 Slows heartbeat Stimulates glucose production Liver and release T5 T6 Inhibits digestion Thoracic Stimulates digestion Stomach T11 T12 L1 Lumbar Vagus nerve (CN X) Cervical Inferior cervical (stellate) ganglion T1 T2 Cranial Constricts systemic blood vessels L2 L3 Gall bladder Stimulates gall bladder to release bile Lumbar Pancreas Adrenal Sacral Superior mesenteric ganglion Constricts blood vessels in intestines Stimulates secretion of adrenaline and noradrenaline Sympathetic trunk Paravertebral ganglia Inferior mesenteric ganglion Prevertebral ganglia Dilates blood vessels in intestines S2 S3 Sacral S4 Relaxes urinary bladder Stimulates urinary bladder to contract Stimulates penile erection Stimulates ejaculation Key = Acetylcholine Parasympathetic ganglia in or near end organs = Norepinephrine
