The interactive dog atlas · Organs · Thorax

Lungs pulmones

The lungs fill the chest cavity, from the thoracic inlet to the diaphragm; the left lung is drawn here. Each lung is divided into lobes, following the branches of the bronchi.

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.
Lungs on the atlas drawing, "Organs" layer, with the neighbouring structures. Left lateral view, after the Ellenberger, Baum and Dittrich plates.

Where it is

They fill the thoracic cavity from the thoracic inlet to the diaphragm; the left lung is drawn here.

Layer
Organs
System
Respiratory system
Region
Thorax

What it is and what it does

The left lung has a cranial lobe, with a cranial part and a caudal part, and a caudal lobe; the right has cranial, middle, caudal and accessory lobes, with the cardiac notch between the cranial and middle lobes. The number of lobes is established by the lobar bronchi, not by the outer appearance. The caudal border follows the cupola of the diaphragm.

The accessory lobe of the right lung lies in a pocket formed by the plica venae cavae (UMN, Lab 11).

The drawing shows the left lung, with the dashed line between the cranial and caudal lobes; the shape is schematic.

Worth remembering

The rear border of the lungs follows the dome of the diaphragm.

Names

  • Also called: pulmones.
  • Latin term: pulmones.
  • In Romanian: Plămânii (Romanian page).

In the atlas lessons

The organs: where they sit, from neck to pelvis (5 min).

Questions from the atlas

"Find it on the drawing" questions whose answer is this structure; in the atlas you will find them in the question bank and in the lessons.

Guides it appears in