Nervous System
Central Nervous System Peripheral Nervous System
Efferent (Motor) Division Afferent (Sensory) Division
Somatic Motor NS Autonomic NS
Sympathetic Division Parasympathetic Division Enteric NS
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Salivary glands
Heart
Lung
Stomach Spleen Pancreas
Small intestine
Large intestine
Rectum
Kidney
Bladder Penis
Scrotum Uterus
Ovary
Pons
Regions of spinal cord Thoracic Cervical Lumbar Sacral
Eye
Adrenal medulla
Preganglionic neurons Postganglionic neurons
Postganglionic fibers to skin, blood vessels, adipose tissue
Sympathetic chain ganglia
Liver and gallbladder
Inferior mesenteric ganglion
Superior mesenteric ganglion
Celiac ganglion
Cardiac and pulmonary plexuses
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Lacrimal gland
Heart
Lung
Stomach
Pancreas
Small intestine
Rectum
Bladder Penis
Scrotum Uterus
Ovary
Ciliary ganglion
Spleen
Descending colon
Otic ganglion
Cardiac plexus
Eye
Thoracic
Cervical
Lumbar
Sacral
Preganglionic neurons
Postganglionic neurons
Pterygopalatine ganglion
Oculomotor n. (CN III)
Submandibular ganglion
Facial n. (CN VII)
Submandibular salivary gland
Parotid salivary gland
Glossopharyngeal n. (CN IX)
Vagus n. (CN X)
Pulmonary plexus
Esophageal plexus
Celiac ganglion
Abdominal aortic plexus
Pelvic splanchnic nerves
Inferior hypogastric plexus
Liver and gallbladder
Kidney and ureter
Transverse colon
Pelvic nerves
Regions of spinal cord
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Artery
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Strong sympathetic tone
Smooth muscle contraction
Vasoconstriction
Weaker sympathetic tone
Smooth muscle relaxation
Vasodilation
Sympathetic nerve fiber
Vasomotor tone
(a) Vasoconstriction
(b) Vasodilation 12
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