Fig. 15.1 2 Glossopharyngeal nerve transmits signals Copyright © McGraw-Hill Education. Permission required for reproduction or display. 2 Glossopharyngeal nerve transmits signals to medulla oblongata Integrating center Receptor 1 Baroreceptors sense increased blood pressure 3 Vagus nerve transmits inhibitory signals to cardiac pacemaker Internal carotid artery Effector 4 Heart rate decreases

Fig. 15.2 2 Somatic efferent innervation ACh Myelinated fiber Copyright © McGraw-Hill Education. Permission required for reproduction or display. Somatic efferent innervation ACh Myelinated fiber Somatic effectors (skeletal muscles) Autonomic efferent innervation ACh ACh or NE Myelinated preganglionic fiber Unmyelinated postganglionic fiber Visceral effectors (cardiac muscle, smooth muscle, glands) Autonomic ganglion 2

Table 15.1 3

Fig. 15.4 Copyright © McGraw-Hill Education. Permission required for reproduction or display. Eye Nasal glands Pons Salivary glands Preganglionic neurons Postganglionic neurons Carotid plexuses Heart Regions of spinal cord Cardiac and pulmonary plexuses Cervical Thoracic Lumbar Sacral Lung Celiac ganglion Liver and gallbladder Superior mesenteric ganglion Stomach Spleen Pancreas Postganglionic fibers to skin, blood vessels, adipose tissue Inferior mesenteric ganglion Small intestine Large intestine Sympathetic chain ganglia Rectum Adrenal medulla Kidney Ovary Penis Scrotum Uterus Bladder 4

Fig. 15.5 5 Soma of preganglionic neuron Sympathetic nerve 2 Copyright © McGraw-Hill Education. Permission required for reproduction or display. Soma of preganglionic neuron To iris, salivary glands, lungs, heart, thoracic blood vessels, esophagus Sympathetic nerve 2 Spinal nerve Somatic motor fiber Preganglionic sympathetic fiber Postganglionic sympathetic fiber To sweat glands, piloerector muscles, and blood vessels of skin and skeletal muscles To somatic effector (skeletal muscle) 1 Soma of somatic motor neuron 3 White ramus Splanchnic nerve Communicating rami Gray ramus Preganglionic neuron Soma of postganglionic neuron Postganglionic neuron Collateral ganglion Somatic neuron Postganglionic sympathetic fibers Sympathetic trunk To liver, spleen, adrenal glands, stomach, intestines, kidneys, urinary bladder, reproductive organs Sympathetic ganglion 2 5

Table 15.2 6

Fig. 15.6 7 Diaphragm Esophagus Adrenal medulla Adrenal cortex (b) Copyright © McGraw-Hill Education. Permission required for reproduction or display. Diaphragm Esophagus Adrenal medulla Adrenal cortex (b) Celiac ganglia Adrenal gland Celiac trunk Superior mesenteric ganglion Renal plexus First lumbar sympathetic ganglion Superior mesenteric artery Kidney Aortic plexus Inferior mesenteric artery Inferior mesenteric ganglion Aorta Pelvic sympathetic chain (a) 7

Fig. 15.7 Copyright © McGraw-Hill Education. Permission required for reproduction or display. Pterygopalatine ganglion Preganglionic neurons Postganglionic neurons Oculomotor n. (CN III) Ciliary ganglion Lacrimal gland Eye Facial n. (CN VII) Submandibular ganglion Submandibular salivary gland Otic ganglion Parotid salivary gland Glossopharyngeal n. (CN IX) Vagus n. (CN X) Cardiac plexus Heart Pulmonary plexus Regions of spinal cord Cervical Esophageal plexus Lung Thoracic Lumbar Celiac ganglion Stomach Sacral Abdominal aortic plexus Liver and gallbladder Spleen Pelvic splanchnic nerves Pancreas Kidney and ureter Transverse colon Inferior hypogastric plexus Descending colon Small intestine Rectum Pelvic nerves Penis Ovary Bladder Uterus Scrotum 8

Table 15.3 9

Fig. 15.8 Copyright © McGraw-Hill Education. Permission required for reproduction or display. (a) Parasympathetic fiber Nicotinic receptor ACh Target cell ACh Preganglionic neuron Postganglionic neuron Muscarinic receptor (b) Sympathetic adrenergic fiber Nicotinic receptor ACh Target cell Preganglionic neuron NE Postganglionic neuron Adrenergic receptor (c) Sympathetic cholinergic fiber Nicotinic receptor ACh Target cell Preganglionic neuron ACh Postganglionic neuron Muscarinic receptor 10

Table 15.4 11

Fig. 15.9 12 Brain Parasympathetic fibers of oculomotor nerve (III) Copyright © McGraw-Hill Education. Permission required for reproduction or display. Brain Parasympathetic fibers of oculomotor nerve (III) Sympathetic fibers Superior cervical ganglion Ciliary ganglion Spinal cord Cholinergic stimulation of pupillary constrictor Iris Adrenergic stimulation of pupillary dilator Pupil Parasympathetic (cholinergic) effect Sympathetic (adrenergic) effect Pupil dilated Pupil constricted 12

Fig. 15.10 13 Artery 1 Sympathetic nerve fiber 1 Strong sympathetic Copyright © McGraw-Hill Education. Permission required for reproduction or display. Artery 1 Sympathetic nerve fiber 1 Strong sympathetic tone 2 2 Smooth muscle contraction 3 Vasomotor tone 3 Vasoconstriction (a) Vasoconstriction 1 1 Weaker sympathetic tone 2 2 Smooth muscle relaxation 3 3 Vasodilation (b) Vasodilation 13