Parasympathetic Pathway to
Abdominal Viscera
Abdominal Viscera
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Origin: parasympathetic nucleus of the vagus nerve
ORIGIN (click to reveal)
Preganglionic Pathway:
vagus nerve, vagosympathetic trunk, vagus nerve (in thorax),
vagus nerve, vagosympathetic trunk, vagus nerve (in thorax),
Preganglionic Pathway
dorsal & ventral vagal branches (bilateral),
Preganglionic Pathway
dorsal & ventral vagal nerve trunks,
Preganglionic Pathway
dorsal vagal nerve trunk joins celiacomesenteric plexus,
Preganglionic Pathway
ventral vagal nerve trunk goes directly to stomach & liver
Preganglionic Pathway
Ganglion: terminal ganglia (within organs innervated)
Autonomic GANGLION (Synapse)
Postganglionic Pathway:
microscopic nerve plexuses within organs, e.g.,
microscopic nerve plexuses within organs, e.g.,
Postganglionic Pathway
myenteric & submucosal nerve plexuses within the gut wall
Postganglionic Pathway
Target Organs:
smooth muscle & glands of alimentary tract (to descending colon);
liver; gallbladder; pancreas; & cranial ureter
smooth muscle & glands of alimentary tract (to descending colon);
liver; gallbladder; pancreas; & cranial ureter
TARGET ORGANS
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(click to reveal)
Pathway Image
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