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Vagus nerve Anatomy Animation / 10th Cranial nerve Origin, Course, Nuclei, Branches & Functions Neuroanatomy

Nuclei

Dorsal nucleus sends parasympathetic fibers to the intestines
Nucleus ambiguus sends efferent motor and parasympathetic fibers to the heart
Solitary nucleus receives special gustatory afferent from the tongue and visceral afferent fibers from organs
Spinal trigeminal nucleus receives general sensory afferent fibers

Branches

In the jugular fossa: meningeal, auricular branches
In the neck: pharyngeal, superior laryngeal, recurrent laryngeal nerves; superior cardiac branches
In the thorax: inferior cardiac nerve, anterior bronchial branches, posterior bronchial branches, esophageal branches
In the abdomen: gastric, celiac and hepatic branches

Field of innervation

General sensory afferent fibers sensory information from larynx, auricle, external acoustic meatus, dura mater of the posterior cranial fossa
General visceral afferent information from the aortic body, esophagus, lungs, bronchi, heart, intestines
Special afferent information about taste
General visceral efferent parasympathetic division that simulates smooth muscle and glands of the pharynx, larynx, thoracic and abdominal organs

Content source : Dr Vishram singh neuroanatomy , Snells neuroanatomy, Kenhub, Moore, Greys Student edition and Crossman

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