A report on Esophageal hiatus

The diaphragm. Under surface. (Esophageal hiatus labeled at center right.)

Opening in the diaphragm through which the esophagus and the vagus nerve pass.

- Esophageal hiatus
The diaphragm. Under surface. (Esophageal hiatus labeled at center right.)

4 related topics with Alpha

Overall

The digestive tract, with the esophagus marked in red

Esophagus

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Organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach.

Organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach.

The digestive tract, with the esophagus marked in red
The esophagus is constricted in three places.
A mass seen during an endoscopy and an ultrasound of the mass conducted during the endoscopy session.

The esophageal hiatus, where it passes through the diaphragm in the posterior mediastinum

Plan of the upper portions of the glossopharyngeal, vagus, and accessory nerves.

Vagus nerve

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Cranial nerve that interfaces with the parasympathetic control of the heart, lungs, and digestive tract.

Cranial nerve that interfaces with the parasympathetic control of the heart, lungs, and digestive tract.

Plan of the upper portions of the glossopharyngeal, vagus, and accessory nerves.
H&E stained fibers of the vagus nerve (bottom right) innervate the sinoatrial node tissue (middle left)
Inferior view of the human brain, with the cranial nerves labeled.
Section of the neck at about the level of the sixth cervical vertebra
Transverse section of thorax, showing relations of pulmonary artery
The arch of the aorta, and its branches
Dura mater and its processes exposed by removing part of the right half of the skull, and the brain
The tracheobronchial lymph glands
Section of the medulla oblongata at about the middle of the olive
Hind- and mid-brains; postero-lateral view
Upper part of medulla spinalis and hind- and mid-brains; posterior aspect, exposed in situ
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
The position and relation of the esophagus in the cervical region and in the posterior mediastinum, seen from behind
The thyroid gland and its relations
The thymus of a full-term fetus, exposed in situ
Deep dissection of vagus nerve
Vagus nerve – dissection

It forms the posterior vagal trunk at the lower part of the esophagus and enters the diaphragm through the esophageal hiatus.

Respiratory system

Thoracic diaphragm

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Sheet of internal skeletal muscle in humans and other mammals that extends across the bottom of the thoracic cavity.

Sheet of internal skeletal muscle in humans and other mammals that extends across the bottom of the thoracic cavity.

Respiratory system
Structure of diaphragm shown using a 3D medical animation still shot
Definition of diaphragm in Blount's 1707 Glossographia Anglicana Nova
Human diaphragm, transverse view from below, showing openings
X-ray of chest, showing top of diaphragm.
Diaphragm and pleural cavities in amphibian (left), bird (center), mammal (right). a, mandible; b, genio-hyoid; c, hyoid; d, sterno-hyoid; e, sternum; f, pericardium; g, septum transversum; h, rectus abdominis; i, abdominal cavity; j, pubis; k, esophagus; l, trachea; m, cervical limiting membrane of abdominal cavity; n, dorsal wall of body; o, lung; o', air-sac.

It helps to expel vomit, feces, and urine from the body by increasing intra-abdominal pressure, aids in childbirth, and prevents acid reflux by exerting pressure on the esophagus as it passes through the esophageal hiatus.

The diaphragm. Under surface. (Left crus and right crus are at bottom center.)+

Crus of diaphragm

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The crus of diaphragm (pl.

The crus of diaphragm (pl.

The diaphragm. Under surface. (Left crus and right crus are at bottom center.)+

The medial fibers of the right crus ascend on the left side of the esophageal hiatus, and occasionally a fasciculus of the left crus crosses the aorta and runs obliquely through the fibers of the right crus toward the vena caval foramen.