Pulmonary veins

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Vein: Pulmonary veins
Right ventricleLeft ventricleAortic valveMitral valveLeft atriumRight atriumAortaPulmonary valveTricuspid valveInferior vena cavaSuperior vena cavaPulmonary arteryPulmonary veinDiagram of the human heart (cropped).svg
About this image
Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow.
Alveoli diagram.png
Diagram of the alveoli with both cross-section and external view.
Latin venae pulmonales
Gray's subject #165 642
Drains from    lungs
Drains to left atrium
Artery pulmonary artery
Precursor truncus arteriosus
MeSH Pulmonary+Veins
/ Elsevier

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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The pulmonary veins carry oxygen-rich blood from the lungs to the left atrium of the heart. They are the only veins in the post-fetal human body that carry oxygenated (red) blood.

The pulmonary veins return the oxygenated blood from the lungs to the left atrium of the heart.


They are four in number, two from each lung, and are destitute of valves. They are

  • right inferior
  • right superior
  • left inferior
  • left superior


They commence in a capillary net-work upon the walls of the air sacs, where they are continuous with the capillary ramifications of the pulmonary artery, and, joining together, form one vessel for each lobule.

These vessels uniting successively, form a single trunk for each lobe, three for the right, and two for the left lung.

The vein from the middle lobe of the right lung generally unites with that from the upper lobe, so that ultimately two trunks from each lung are formed; they perforate the fibrous layer of the pericardium and open separately into the upper and back part of the left atrium.

Occasionally the three veins on the right side remain separate.

Not infrequently the two left pulmonary veins end by a common opening.

At the root of the lung, the superior pulmonary vein lies in front of and a little below the pulmonary artery; the inferior is situated at the lowest part of the hilus of the lung and on a plane posterior to the upper vein. Behind the pulmonary artery is the bronchus.

Within the pericardium, their anterior surfaces are invested by the serous layer of this membrane.

The right pulmonary veins pass behind the right atrium and superior vena cava; the left in front of the descending thoracic aorta.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

Cost Effectiveness of Pulmonary veins

| group5 = Clinical Trials Involving Pulmonary veins | list5 = Ongoing Trials on Pulmonary veins at Clinical Trials.govTrial results on Pulmonary veinsClinical Trials on Pulmonary veins at Google

| group6 = Guidelines / Policies / Government Resources (FDA/CDC) Regarding Pulmonary veins | list6 = US National Guidelines Clearinghouse on Pulmonary veinsNICE Guidance on Pulmonary veinsNHS PRODIGY GuidanceFDA on Pulmonary veinsCDC on Pulmonary veins

| group7 = Textbook Information on Pulmonary veins | list7 = Books and Textbook Information on Pulmonary veins

| group8 = Pharmacology Resources on Pulmonary veins | list8 = AND (Dose)}} Dosing of Pulmonary veinsAND (drug interactions)}} Drug interactions with Pulmonary veinsAND (side effects)}} Side effects of Pulmonary veinsAND (Allergy)}} Allergic reactions to Pulmonary veinsAND (overdose)}} Overdose information on Pulmonary veinsAND (carcinogenicity)}} Carcinogenicity information on Pulmonary veinsAND (pregnancy)}} Pulmonary veins in pregnancyAND (pharmacokinetics)}} Pharmacokinetics of Pulmonary veins

| group9 = Genetics, Pharmacogenomics, and Proteinomics of Pulmonary veins | list9 = AND (pharmacogenomics)}} Genetics of Pulmonary veinsAND (pharmacogenomics)}} Pharmacogenomics of Pulmonary veinsAND (proteomics)}} Proteomics of Pulmonary veins

| group10 = Newstories on Pulmonary veins | list10 = Pulmonary veins in the newsBe alerted to news on Pulmonary veinsNews trends on Pulmonary veins

| group11 = Commentary on Pulmonary veins | list11 = Blogs on Pulmonary veins

| group12 = Patient Resources on Pulmonary veins | list12 = Patient resources on Pulmonary veinsDiscussion groups on Pulmonary veinsPatient Handouts on Pulmonary veinsDirections to Hospitals Treating Pulmonary veinsRisk calculators and risk factors for Pulmonary veins

| group13 = Healthcare Provider Resources on Pulmonary veins | list13 = Symptoms of Pulmonary veinsCauses & Risk Factors for Pulmonary veinsDiagnostic studies for Pulmonary veinsTreatment of Pulmonary veins

| group14 = Continuing Medical Education (CME) Programs on Pulmonary veins | list14 = CME Programs on Pulmonary veins

| group15 = International Resources on Pulmonary veins | list15 = Pulmonary veins en EspanolPulmonary veins en Francais

| group16 = Business Resources on Pulmonary veins | list16 = Pulmonary veins in the MarketplacePatents on Pulmonary veins

| group17 = Informatics Resources on Pulmonary veins | list17 = List of terms related to Pulmonary veins

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