A report on EsophagusTrachea and Vagus nerve

The digestive tract, with the esophagus marked in red
Conducting passages
Plan of the upper portions of the glossopharyngeal, vagus, and accessory nerves.
The esophagus is constricted in three places.
H&E stained fibers of the vagus nerve (bottom right) innervate the sinoatrial node tissue (middle left)
A mass seen during an endoscopy and an ultrasound of the mass conducted during the endoscopy session.
Lymph nodes of the trachea.
Inferior view of the human brain, with the cranial nerves labeled.
Tracheal diverticulum as seen on axial CT imaging
Section of the neck at about the level of the sixth cervical vertebra
Tracheal system of dissected cockroach. The largest tracheae run across the width of the body of the cockroach and are horizontal in this image. Scale bar, 2 mm.
Transverse section of thorax, showing relations of pulmonary artery
The tracheal system branches into progressively smaller tubes, here supplying the crop of the cockroach. Scale bar, 2 mm.
The arch of the aorta, and its branches
thumb|Cross section of a trachea and esophagus
Dura mater and its processes exposed by removing part of the right half of the skull, and the brain
The sternohyoid and sternothyroid muscles lie on top of the upper part of the trachea
The tracheobronchial lymph glands
The thyroid gland also lies on top of the trachea, and lies below the cricoid cartilage.
Section of the medulla oblongata at about the middle of the olive
Hind- and mid-brains; postero-lateral view
Cross-section of the trachea, with pseudostratified ciliated columnar epithelium and goblet cells labelled
Upper part of medulla spinalis and hind- and mid-brains; posterior aspect, exposed in situ
Magnified cross-section of the cartilage of the trachea.
The right sympathetic chain and its connections with the thoracic, abdominal, and pelvic plexuses
The celiac ganglia with the sympathetic plexuses of the abdominal viscera radiating from the ganglia
Coronal section of larynx and upper part of trachea
The position and relation of the esophagus in the cervical region and in the posterior mediastinum, seen from behind
alt=Trachea (mammal) cross-section high resolution|Trachea (mammal) cross-section high resolution
The thyroid gland and its relations
alt=Trachea (mammal) cross-section low resolution|Trachea (mammal) cross-section low resolution
The thymus of a full-term fetus, exposed in situ
Deep dissection of vagus nerve
Vagus nerve – dissection

The esophagus is a fibromuscular tube, about 25 cm long in adults, that travels behind the trachea and heart, passes through the diaphragm, and empties into the uppermost region of the stomach.

- Esophagus

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 nerve

Its 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.

- Esophagus

Behind the trachea, along its length, sits the oesophagus, followed by connective tissue and the vertebral column.

- Trachea

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.

- Trachea
The digestive tract, with the esophagus marked in red

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Anatomy of the larynx, anterolateral view


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Anatomy of the larynx, anterolateral view
Sagittal section of the larynx and upper part of the trachea.
The basic parts of the human larynx.
Vocal cords abducted and adducted
Extrinsic laryngeal muscles
Image of endoscopy
Endoscopic image of an inflamed human larynx
Larynx. Deep dissection. Anterior view.
Larynx. Deep dissection. Posterior view.

The larynx, commonly called the voice box, is an 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.