A report on Esophagus and Vagus nerve
The right vagus nerve gives rise to the right recurrent laryngeal nerve, which hooks around the right subclavian artery and ascends into the neck between the trachea and esophagus.
- Vagus nerveIts smooth muscle is innervated by involuntary nerves (sympathetic nerves via the sympathetic trunk and parasympathetic nerves via the vagus nerve) and in addition voluntary nerves (lower motor neurons) which are carried in the vagus nerve to innervate its striated muscle.
- Esophagus7 related topics with Alpha
Parasympathetic nervous system
1 linksOne of the three divisions of the autonomic nervous system, the others being the sympathetic nervous system and the enteric nervous system.
One of the three divisions of the autonomic nervous system, the others being the sympathetic nervous system and the enteric nervous system.
Specific nerves include several cranial nerves, specifically the oculomotor nerve, facial nerve, glossopharyngeal nerve, and vagus nerve.
2) The vagus nerve does not participate in these cranial ganglia as most of its parasympathetic fibers are destined for a broad array of ganglia on or near thoracic viscera (esophagus, trachea, heart, lungs) and abdominal viscera (stomach, pancreas, liver, kidneys, small intestine, and about half of the large intestine). The vagus innervation ends at the junction between the midgut and hindgut, just before the splenic flexure of the transverse colon.
Trachea
1 linksCartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.
Cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.
Behind the trachea, along its length, sits the oesophagus, followed by connective tissue and the vertebral column.
To its sides run the carotid arteries and inferior thyroid arteries; and to its sides on its back surface run the recurrent laryngeal nerves in the upper trachea, and the vagus nerves in the lower trachea.
Heart
1 linksMuscular organ in most animals.
Muscular organ in most animals.
The heart receives nerve signals from the vagus nerve and from nerves arising from the sympathetic trunk.
Echocardiography can be conducted by a probe on the chest (transthoracic), or by a probe in the esophagus (transesophageal).
Larynx
1 linksOrgan in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration.
Organ in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration.
It is situated just below where the tract of the pharynx splits into the trachea and the esophagus.
The larynx is innervated by branches of the vagus nerve on each side.
Esophageal hiatus
0 linksIn human anatomy, the esophageal hiatus is an opening in the diaphragm through which the esophagus and the vagus nerve pass.
Nucleus ambiguus
0 linksGroup of large motor neurons, situated deep in the medullary reticular formation named by Jacob Clarke.
Group of large motor neurons, situated deep in the medullary reticular formation named by Jacob Clarke.
This nucleus gives rise to the branchial efferent motor fibers of the vagus nerve (CN X) terminating in the laryngeal, pharyngeal muscles, and musculus uvulae; as well as to the efferent motor fibers of the glossopharyngeal nerve (CN IX) terminating in the stylopharyngeus muscle.
The vagus also supplies the upper part of the esophagus, and other parts of the pharynx and larynx.
Vomiting
0 linksInvoluntary, forceful expulsion of the contents of one's stomach through the mouth and sometimes the nose.
Involuntary, forceful expulsion of the contents of one's stomach through the mouth and sometimes the nose.
Repeated or profuse vomiting may cause erosions to the esophagus or small tears in the esophageal mucosa (Mallory–Weiss tear).
The cranial nerve X (vagus nerve) is activated when the pharynx is irritated, leading to a gag reflex.