Vagus nerve Anatomy Animation / Cranial nerve X : Origin, Course, Nuclei, Branches - Neuroanatomy

Video Description

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

Nuclei
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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
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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
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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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