Fri . 20 Jul 2020
TR | RU | UK | KK | BE |

Root of the lung

root of the lung, root of the lung histology slide
The root of the lung is located at the hilum of each lung, just above the middle of the mediastinal surface and behind the cardiac impression of the lung It is nearer to the back posterior border than the front anterior border The root of the lung is connected by the structures that form it to the heart and the trachea The rib cage is separated from the lung by a two-layered membranous coating, the pleura The hilum is the large triangular depression where the connection between the parietal pleura covering the rib cage and the visceral pleura covering the lung is made, and this marks the meeting point between the mediastinum and the pleural cavities

The root is formed by the bronchus, the pulmonary artery, the pulmonary veins, the bronchial arteries and veins, the pulmonary plexuses of nerves, lymphatic vessels, bronchial lymph nodes, and areolar tissue, all of which are enclosed by a reflection of the pleura

The root of the right lung lies behind the superior vena cava and part of the right atrium, and below the azygos vein That of the left lung passes beneath the aortic arch and in front of the descending aorta; the phrenic nerve, pericardiacophrenic artery and vein, and the anterior pulmonary plexus, lie in front of each, and the vagus nerve and posterior pulmonary plexus lie behind

The chief structures composing the root of each lung are arranged in a similar manner from the front to the back on each side This means that the upper of the two pulmonary veins are in front, the pulmonary artery is in the middle, and the bronchus and bronchial vessels are behind


  • 1 Structures
  • 2 Additional images
  • 3 References
  • 4 External links


The arrangement on the two sides is not symmetrical

Right side: superior to inferior Eparterial bronchus, pulmonary artery, hyparterial bronchus and pulmonary vein

Left Side: superior to inferior Pulmonary artery, bronchus and pulmonary vein

Also on each hilum there are hilar bronchopulmonary lymph nodes

The parietal pleura surrounding the root of the lung extends downwards from the hilum in a fold called the pulmonary ligament The lower end of this is sometimes referred to as the inferior pulmonary ligament At the lower edge of each lung the pleural layers come into contact with each other and terminate in a free curved edge The pulmonary ligaments serve to hold the lower part of the lungs in position

Additional imagesedit


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy 1918

External linksedit

  • Atlas image: lung_lymph at the University of Michigan Health System - "Transverse section through lung"
  • thoraxlesson2 at The Anatomy Lesson by Wesley Norman Georgetown University
  • Diagram at seercancergov #21

root of the lung, root of the lung ct, root of the lung dog, root of the lung histology slide, root of the lung pulmonary artery and veins, root of the lungs

Root of the lung Information about

Root of the lung

  • user icon

    Root of the lung beatiful post thanks!


Root of the lung
Root of the lung
Root of the lung viewing the topic.
Root of the lung what, Root of the lung who, Root of the lung explanation

There are excerpts from wikipedia on this article and video

Random Posts



The Picts were a tribal confederation of peoples who lived in what is today eastern and northern Sco...
Visual prosthesis

Visual prosthesis

A visual prosthesis, often referred to as a bionic eye, is an experimental visual device intended to...
Mini rugby

Mini rugby

Mini rugby, also known as New Image Rugby, is a form of rugby union designed to introduce the sport ...
List of synthetic polymers

List of synthetic polymers

Synthetic polymers are human-made polymers From the utility point of view they can be classified int...