Editing Lung (section)

=== Right lung ===
The right lung has both more lobes and segments than the left. It is divided into three lobes, an upper, middle, and a lower lobe by two fissures, one oblique and one horizontal.<ref name="Chaudhry">{{cite book|vauthors=Chaudhry R, Bordoni B|title=StatPearls [Internet]|chapter=Anatomy, Thorax, Lungs|date=Jan 2019 |pmid=29262068}}</ref> The upper, horizontal fissure, separates the upper from the middle lobe. It begins in the lower oblique fissure near the posterior border of the lung, and, running horizontally forward, cuts the anterior border on a level with the [[sternum|sternal]] end of the fourth [[costal cartilage]]; on the [[mediastinal]] surface it may be traced back to the [[root of the lung|hilum]].<ref name=GRAYS /> The lower, oblique fissure, separates the lower from the middle and upper lobes and is closely aligned with the oblique fissure in the left lung.<ref name=GRAYS /><ref name="Lung fissures" />

The mediastinal surface of the right lung is indented by a number of nearby structures. The heart sits in an impression called the cardiac impression. Above the hilum of the lung is an arched groove for the [[azygos vein]], and above this is a wide groove for the [[superior vena cava]] and right [[brachiocephalic vein]]; behind this, and close to the top of the lung is a groove for the [[brachiocephalic artery]]. There is a groove for the [[esophagus|oesophagus]] behind the hilum and the [[pulmonary ligament]], and near the lower part of the oesophageal groove is a deeper groove for the [[inferior vena cava]] before it enters the heart.<ref name="GRAYS40TH">{{cite book|last1=Standring|first1=Susan|editor1-last=Borley|editor1-first=Neil R.|title=Gray's Anatomy: The Anatomical Basis of Clinical Practice|date=2008|publisher=[[Churchill Livingstone]]/[[Elsevier]]|location=Edinburgh|isbn=978-0-443-06684-9|edition=40th|pages=992–1000|url=https://books.google.com/books?id=kvhkPQAACAAJ}} [https://archive.org/stream/GraysAnatomy40thEd_201403/Gray's%20Anatomy%20-%2040th%20Ed_djvu.txt Alt URL]</ref>

The weight of the right lung varies between individuals, with a standard [[reference range]] in men of {{convert|155-720|g|lb|abbr=on}}<ref name="MolinaDiMaio2012">{{cite journal |last1=Molina |first1=D. Kimberley |last2=DiMaio |first2=Vincent J.M. |title=Normal Organ Weights in Men |journal=The American Journal of Forensic Medicine and Pathology |date=December 2012 |volume=33 |issue=4 |pages=368–372 |doi=10.1097/PAF.0b013e31823d29ad |pmid=22182984 |s2cid=32174574 }}</ref> and in women of {{convert|100-590|g|lb|abbr=on}}.<ref name="MolinaDiMaio2015">{{cite journal |last1=Molina |first1=D. Kimberley |last2=DiMaio |first2=Vincent J. M. |title=Normal Organ Weights in Women |journal=The American Journal of Forensic Medicine and Pathology |date=September 2015 |volume=36 |issue=3 |pages=182–187 |doi=10.1097/PAF.0000000000000175 |pmid=26108038 |s2cid=25319215 }}</ref>