The interactive dog atlas · Organs · Neck and thorax

Esophagus oesophagus

The esophagus is the tube that links the throat (pharynx) to the stomach. In the neck it lies above the trachea; in the chest it passes above the heart and leaves the thorax through an opening in the diaphragm.

Educational material, not a diagnostic tool. Written by the Mantrailing România team from veterinary sources we read. Updated 14.11.2026.

Dog in left lateral view — exterior, muscles, skeleton and organs Vector study after the Ellenberger, Baum and Dittrich plates: a standing dog, head to the left, deep chest and digitigrade limbs. The four layers use the same contour: exterior with body regions, superficial muscles, skeleton and organs.
Esophagus on the atlas drawing, "Organs" layer, with the neighbouring structures. Left lateral view, after the Ellenberger, Baum and Dittrich plates.

Where it is

Dorsal to the trachea in the neck, then through the mediastinum to the esophageal hiatus of the diaphragm.

Layer
Organs
System
Digestive system
Region
Neck and thorax

What it is and what it does

The esophagus links the pharynx to the stomach. In the neck it lies dorsal to the trachea; in the thorax it passes through the cranial mediastinum, then dorsal to the heart and to the tracheal bifurcation, in the middle mediastinum, and leaves the thorax between the two crura of the diaphragm, through the esophageal hiatus, next to the aorta, which has its own hiatus.

Worth remembering

The aorta, the great artery, passes through the diaphragm through its own opening, alongside.

Names

Guides it appears in

From the same region: Neck and thorax

All structures, in the atlas · Flashcards: organs