Right auricular appendix

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Right auricular appendix
Heart seen from above. (Right auricula labeled at upper right.)
Sternocostal surface of heart. (Right auricula visible at upper left.)
Latin	auricula dextra
Gray's	subject #138 529
Dorlands/Elsevier	a_73/12169666

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The right auricular appendix (right auricula, right auricle) is a small conical muscular pouch attached to the right atrium of the heart. Its margins present a dentated edge. It projects from the upper and front part of the sinus forward and toward the left side, overlapping the root of the aorta.

The right auricle, along with the right atrial body, is lined with pectinate muscles that form a network of hills and furrows that give it a trabeculated surface.

In older texts, the term "right auricle" was often used to describe the structure now known as the right atrium.

See also

• Left auricular appendix

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 As such, some of the information contained herein may be outdated.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.

v • d • e Anatomy of torso, cardiovascular system: heart
Structures	atria (interatrial septum, musculi pectinati) • ventricles (interventricular septum, trabeculae carneae, chordae tendinae, papillary muscle) • valves • cusps
Regions	base • apex • grooves (coronary/atrioventricular, interatrial, anterior interventricula, posterior interventricular) • surfaces (sternocostal, diaphragmatic) • borders (right, left)
Right heart	(vena cavae, coronary sinus) → right atrium (auricle, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve of the inferior vena cava, valve of the coronary sinus) → tricuspid valve → right ventricle (conus arteriosus, moderator band/septomarginal trabecula)  → pulmonary valve → (pulmonary artery and pulmonary circulation)
Left heart	(pulmonary veins) → left atrium (auricle) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and systemic circulation)
Layers	pericardium: fibrous pericardium • serous pericardium (pericardial cavity, epicardium/visceral layer) • pericardial sinus myocardium • endocardium • cardiac skeleton (fibrous trigone, fibrous rings)
Conduction system	Cardiac pacemaker • SA node • AV node• bundle of His • Purkinje fibers

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Articles on Right auricular appendix	Most recent articles on Right auricular appendix • Most cited articles on Right auricular appendix • Review articles on Right auricular appendix • Articles on Right auricular appendix in N Eng J Med, Lancet, BMJ
Media (Slides, Video, Images, MP3) on Right auricular appendix	Powerpoint slides on Right auricular appendix • Images of Right auricular appendix • Photos of Right auricular appendix • Podcasts & MP3s on Right auricular appendix • Videos on Right auricular appendix
Evidence Based Medicine Regarding Right auricular appendix	Cochrane Collaboration on Right auricular appendix • Bandolier on Right auricular appendix • TRIP on Right auricular appendix
Cost Effectiveness of Right auricular appendix	Cost Effectiveness of Right auricular appendix
Clinical Trials Involving Right auricular appendix	Ongoing Trials on Right auricular appendix at Clinical Trials.gov • Trial results on Right auricular appendix • Clinical Trials on Right auricular appendix at Google
Guidelines / Policies / Government Resources (FDA/CDC) Regarding Right auricular appendix	US National Guidelines Clearinghouse on Right auricular appendix • NICE Guidance on Right auricular appendix • NHS PRODIGY Guidance • FDA on Right auricular appendix • CDC on Right auricular appendix
Textbook Information on Right auricular appendix	Books and Textbook Information on Right auricular appendix
Pharmacology Resources on Right auricular appendix	Dosing of Right auricular appendix • Drug interactions with Right auricular appendix • Side effects of Right auricular appendix • Allergic reactions to Right auricular appendix • Overdose information on Right auricular appendix • Carcinogenicity information on Right auricular appendix • Right auricular appendix in pregnancy • Pharmacokinetics of Right auricular appendix •
Genetics, Pharmacogenomics, and Proteinomics of Right auricular appendix	Genetics of Right auricular appendix • Pharmacogenomics of Right auricular appendix • Proteomics of Right auricular appendix
Newstories on Right auricular appendix	Right auricular appendix in the news • Be alerted to news on Right auricular appendix • News trends on Right auricular appendix
Commentary on Right auricular appendix	Blogs on Right auricular appendix
Patient Resources on Right auricular appendix	Patient resources on Right auricular appendix • Discussion groups on Right auricular appendix • Patient Handouts on Right auricular appendix • Directions to Hospitals Treating Right auricular appendix • Risk calculators and risk factors for Right auricular appendix
Healthcare Provider Resources on Right auricular appendix	Symptoms of Right auricular appendix • Causes & Risk Factors for Right auricular appendix • Diagnostic studies for Right auricular appendix • Treatment of Right auricular appendix
Continuing Medical Education (CME) Programs on Right auricular appendix	CME Programs on Right auricular appendix
International Resources on Right auricular appendix	Right auricular appendix en Espanol • Right auricular appendix en Francais
Business Resources on Right auricular appendix	Right auricular appendix in the Marketplace • Patents on Right auricular appendix
Informatics Resources on Right auricular appendix	List of terms related to Right auricular appendix

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .