{"id":2457,"date":"2026-02-27T14:04:34","date_gmt":"2026-02-27T14:04:34","guid":{"rendered":"https:\/\/www.bestspinehospitals.com\/blog\/right-atrium-definition-uses-and-clinical-overview\/"},"modified":"2026-02-27T14:04:34","modified_gmt":"2026-02-27T14:04:34","slug":"right-atrium-definition-uses-and-clinical-overview","status":"publish","type":"post","link":"https:\/\/www.bestspinehospitals.com\/blog\/right-atrium-definition-uses-and-clinical-overview\/","title":{"rendered":"Right Atrium: Definition, Uses, and Clinical Overview"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Right Atrium Introduction (What it is)<\/h2>\n\n\n\n<p>The Right Atrium is one of the four chambers of the heart.<br\/>\nIt receives blood returning to the heart from the body through the major veins.<br\/>\nIt helps move blood into the right ventricle and toward the lungs for oxygenation.<br\/>\nClinicians commonly reference the Right Atrium in imaging, rhythm evaluation, and catheter-based procedures.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why Right Atrium used (Purpose \/ benefits)<\/h2>\n\n\n\n<p>The Right Atrium is not a medication or a single \u201ctreatment.\u201d It is an essential cardiac chamber that clinicians assess because it reflects how well blood returns to the heart and how the right side of the heart is functioning.<\/p>\n\n\n\n<p>In practice, evaluating the Right Atrium can help clinicians:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Understand symptoms<\/strong> such as shortness of breath, swelling, fatigue, or exercise intolerance by assessing right-sided heart filling and pressures.<\/li>\n<li><strong>Support diagnosis and risk stratification<\/strong> in conditions that affect the right heart, the lungs, or the heart\u2019s electrical system (for example, pulmonary hypertension, tricuspid valve disease, or atrial arrhythmias).<\/li>\n<li><strong>Guide procedures and device therapy<\/strong>, because the Right Atrium is a common pathway for catheters and pacing\/defibrillator leads placed through the venous system.<\/li>\n<li><strong>Interpret hemodynamics (blood flow and pressure relationships)<\/strong> during right-heart catheterization, where pressures measured near or within the Right Atrium help describe cardiac filling status.<\/li>\n<\/ul>\n\n\n\n<p>A clear Right Atrium assessment can add context to findings from the lungs, the right ventricle, and the tricuspid valve, which are closely connected anatomically and physiologically.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Clinical context (When cardiologists or cardiovascular clinicians use it)<\/h2>\n\n\n\n<p>Common scenarios where the Right Atrium is referenced, assessed, or directly involved include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Evaluation of <strong>right-sided heart failure<\/strong> features (fluid retention, abdominal fullness, leg swelling).<\/li>\n<li>Assessment of <strong>pulmonary hypertension<\/strong> and its impact on right-heart structure and filling pressures.<\/li>\n<li>Workup of <strong>tricuspid regurgitation<\/strong> or other tricuspid valve abnormalities.<\/li>\n<li>Review of <strong>echocardiograms<\/strong> reporting Right Atrium size, volume, or estimated right atrial pressure.<\/li>\n<li>Interpretation of <strong>central venous pressure<\/strong> concepts in perioperative, critical care, and procedural settings (terminology and methods vary by clinician and case).<\/li>\n<li>Diagnosis and management of <strong>atrial arrhythmias<\/strong> (for example, typical atrial flutter circuits often involve right atrial tissue).<\/li>\n<li>Planning or follow-up of <strong>pacemaker\/ICD leads<\/strong>, which often traverse the Right Atrium en route to the right ventricle.<\/li>\n<li>Evaluation of <strong>congenital heart disease<\/strong>, where right atrial anatomy and venous connections may be atypical.<\/li>\n<li>Investigation for <strong>intracardiac masses or thrombus<\/strong> when imaging raises concern (interpretation depends on modality and clinical context).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Contraindications \/ when it\u2019s NOT ideal<\/h2>\n\n\n\n<p>The Right Atrium itself is an anatomical structure, so it is not \u201ccontraindicated.\u201d Contraindications usually apply to <strong>specific tests or procedures that involve imaging or entering the Right Atrium<\/strong>. When the Right Atrium is the focus, clinicians may choose another approach or delay evaluation in situations such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Active bloodstream infection or suspected endocarditis<\/strong>, where placing intravascular hardware may be avoided or deferred (approach varies by clinician and case).<\/li>\n<li><strong>Known or suspected venous thrombosis<\/strong> (clot) that could complicate catheter or lead passage through veins into the Right Atrium.<\/li>\n<li><strong>High bleeding risk<\/strong> or severe coagulopathy when an invasive catheter-based assessment is being considered.<\/li>\n<li><strong>Inability to obtain adequate imaging<\/strong> due to body habitus, lung interference, or limited acoustic windows on transthoracic echocardiography; another modality may be preferred.<\/li>\n<li><strong>Contrast limitations<\/strong> when CT-based evaluation is considered (for example, prior contrast reaction or kidney dysfunction); alternatives may include echocardiography or MRI depending on the clinical question.<\/li>\n<li><strong>MRI restrictions<\/strong> in some patients with certain implanted devices or abandoned leads; eligibility depends on device type, protocols, and local expertise.<\/li>\n<li><strong>Complex congenital anatomy<\/strong> where standard measurements or catheter routes do not apply; specialized imaging and procedural planning may be needed.<\/li>\n<\/ul>\n\n\n\n<p>In many of these situations, the \u201cbetter\u201d alternative depends on the question being asked (structure, rhythm, pressure, or vascular access) and local resources.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How it works (Mechanism \/ physiology)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Core physiology and role in circulation<\/h3>\n\n\n\n<p>The Right Atrium is the heart\u2019s <strong>receiving chamber for systemic venous blood<\/strong>\u2014blood that has circulated through the body and is returning with lower oxygen content. Blood enters primarily through:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>superior vena cava<\/strong> (from the upper body)<\/li>\n<li>The <strong>inferior vena cava<\/strong> (from the lower body)<\/li>\n<li>The <strong>coronary sinus<\/strong> (venous drainage from the heart muscle itself)<\/li>\n<\/ul>\n\n\n\n<p>From the Right Atrium, blood passes through the <strong>tricuspid valve<\/strong> into the <strong>right ventricle<\/strong>, which then pumps blood into the pulmonary arteries and on to the lungs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reservoir, conduit, and \u201cbooster\u201d functions<\/h3>\n\n\n\n<p>Clinicians often describe the Right Atrium as having three functional roles that blend together across the cardiac cycle:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reservoir function:<\/strong> it collects venous return when the tricuspid valve is closed.<\/li>\n<li><strong>Conduit function:<\/strong> it allows blood to flow into the right ventricle when the tricuspid valve opens.<\/li>\n<li><strong>Contractile (booster) function:<\/strong> it contracts near the end of filling to help optimize right ventricular preload (the amount of blood in the ventricle before it contracts).<\/li>\n<\/ul>\n\n\n\n<p>The importance of each component can change with age, rhythm status (for example, atrial fibrillation), valve disease, and right ventricular stiffness.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Relationship to the conduction system<\/h3>\n\n\n\n<p>The Right Atrium contains key elements of the heart\u2019s electrical system:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>sinoatrial (SA) node<\/strong>, the usual \u201cnatural pacemaker,\u201d is located in the right atrial region.<\/li>\n<li>Electrical impulses travel through atrial tissue toward the <strong>atrioventricular (AV) node<\/strong>, located near the atrial septum.<\/li>\n<\/ul>\n\n\n\n<p>Because of this, right atrial anatomy is relevant in rhythm disorders and in electrophysiology procedures. However, the exact source of an arrhythmia and its mapping strategy vary by clinician and case.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What clinicians infer from Right Atrium size and pressure<\/h3>\n\n\n\n<p>Right atrial size and estimated pressure are often interpreted as <strong>markers of chronic volume\/pressure loading<\/strong> on the right heart. Examples include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Long-standing tricuspid regurgitation leading to right atrial dilation.<\/li>\n<li>Pulmonary hypertension increasing right-sided pressures over time.<\/li>\n<li>Reduced right ventricular compliance affecting atrial filling and pressures.<\/li>\n<\/ul>\n\n\n\n<p>These are general physiologic concepts; the same right atrial measurement can have different implications depending on the overall clinical picture and the imaging method.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Right Atrium Procedure overview (How it\u2019s applied)<\/h2>\n\n\n\n<p>Because the Right Atrium is a structure rather than a single procedure, \u201capplication\u201d usually means <strong>how it is examined, measured, or accessed<\/strong>. A typical high-level workflow looks like this:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\n<p><strong>Evaluation \/ exam<\/strong>\n   &#8211; History and physical exam focusing on symptoms of right-sided congestion and rhythm complaints (palpitations, exercise tolerance).\n   &#8211; Review of prior ECGs, imaging, and relevant lab results as part of a broader cardiovascular assessment.<\/p>\n<\/li>\n<li>\n<p><strong>Preparation<\/strong>\n   &#8211; Selection of the appropriate test: echocardiography, CT, MRI, or invasive hemodynamic assessment, depending on the clinical question.\n   &#8211; If an invasive procedure is planned, clinicians consider venous access route, infection risk, bleeding risk, and patient-specific anatomy.<\/p>\n<\/li>\n<li>\n<p><strong>Intervention \/ testing<\/strong>\n   &#8211; <strong>Echocardiography:<\/strong> measures right atrial size and evaluates tricuspid valve function; may estimate right atrial pressure using venous\/flow surrogates.\n   &#8211; <strong>Right-heart catheterization:<\/strong> obtains pressures in the venous system and right-sided chambers, often including right atrial pressure, to characterize hemodynamics.\n   &#8211; <strong>Electrophysiology procedures:<\/strong> use right atrial access for mapping, pacing maneuvers, and some ablation targets.\n   &#8211; <strong>Device procedures:<\/strong> pacing\/defibrillator leads commonly pass through the Right Atrium.<\/p>\n<\/li>\n<li>\n<p><strong>Immediate checks<\/strong>\n   &#8211; Review of measurements and image quality; confirmation of lead position or catheter data when relevant.\n   &#8211; Monitoring for near-term complications depends on the test performed.<\/p>\n<\/li>\n<li>\n<p><strong>Follow-up<\/strong>\n   &#8211; Results are interpreted alongside symptoms, other chamber findings (especially the right ventricle), and pulmonary\/valve evaluation.\n   &#8211; Repeat assessment timing varies by clinician and case, and by whether a condition is stable, progressing, or being treated.<\/p>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Types \/ variations<\/h2>\n\n\n\n<p>Right atrial discussions in cardiology commonly involve variations in <strong>anatomy, enlargement patterns, rhythm context, and assessment method<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Normal anatomy vs congenital variants<\/strong><\/li>\n<li>Variations in venous connections, atrial septal anatomy, or chamber geometry may be present in congenital heart disease.<\/li>\n<li>\n<p>The <strong>right atrial appendage<\/strong> (a small outpouching) is a normal structure but can vary in shape.<\/p>\n<\/li>\n<li>\n<p><strong>Acute vs chronic right atrial enlargement<\/strong><\/p>\n<\/li>\n<li><strong>Acute changes<\/strong> can occur with sudden shifts in volume\/pressure loading, though interpretation is highly context-dependent.<\/li>\n<li>\n<p><strong>Chronic enlargement<\/strong> is often discussed in long-standing valve disease, pulmonary hypertension, or chronic lung disease.<\/p>\n<\/li>\n<li>\n<p><strong>Rhythm-related variation<\/strong><\/p>\n<\/li>\n<li>In <strong>atrial fibrillation<\/strong>, the atrium does not contract effectively, altering right atrial mechanical function and Doppler findings.<\/li>\n<li>\n<p>In <strong>typical atrial flutter<\/strong>, the re-entrant circuit often involves right atrial tissue, making right atrial anatomy particularly relevant.<\/p>\n<\/li>\n<li>\n<p><strong>Measurement approaches<\/strong><\/p>\n<\/li>\n<li><strong>Linear dimensions<\/strong> vs <strong>area<\/strong> vs <strong>volume<\/strong> measurements on echocardiography.<\/li>\n<li><strong>Cross-sectional imaging (CT\/MRI)<\/strong> for detailed anatomy when echocardiography is limited or when more precision is needed.<\/li>\n<li><strong>Hemodynamic estimates<\/strong> (noninvasive surrogates) vs <strong>direct invasive pressure measurement<\/strong> during catheterization.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pros and cons<\/h2>\n\n\n\n<p>Pros:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Helps clarify <strong>right-sided heart function<\/strong> when symptoms suggest congestion or pulmonary vascular disease.<\/li>\n<li>Provides context for <strong>tricuspid valve<\/strong> evaluation and right ventricular filling.<\/li>\n<li>Central to understanding and treating certain <strong>atrial arrhythmias<\/strong> that involve right atrial circuits.<\/li>\n<li>Serves as a common <strong>route for catheters and cardiac device leads<\/strong> placed through the veins.<\/li>\n<li>Right atrial findings can support <strong>trend monitoring<\/strong> when repeated over time with consistent technique.<\/li>\n<li>Imaging of the Right Atrium is often feasible with <strong>noninvasive tests<\/strong> such as echocardiography.<\/li>\n<\/ul>\n\n\n\n<p>Cons:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Right atrial size\/pressure interpretations can be <strong>non-specific<\/strong> and must be integrated with the overall clinical picture.<\/li>\n<li>Noninvasive estimates (for example, pressure surrogates) can be <strong>operator- and image-quality dependent<\/strong>.<\/li>\n<li>The Right Atrium may be harder to assess in some patients due to <strong>limited echocardiographic windows<\/strong>.<\/li>\n<li>Invasive assessment (catheterization or procedures involving right atrial access) carries <strong>procedural risks<\/strong>, which vary by approach and patient factors.<\/li>\n<li>Anatomical variations (especially congenital) can make standard measurements <strong>less transferable<\/strong> to an individual case.<\/li>\n<li>Arrhythmias can alter both atrial function and measurement reliability, complicating <strong>comparisons across time<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Aftercare &amp; longevity<\/h2>\n\n\n\n<p>Because the Right Atrium is a structure, \u201caftercare\u201d typically refers to follow-up after <strong>a test<\/strong> (like echocardiography or catheterization) or after <strong>a procedure that traverses or treats right atrial tissue<\/strong> (such as device implantation or selected electrophysiology interventions).<\/p>\n\n\n\n<p>Factors that commonly influence longer-term outcomes and the durability of improvements\u2014when a right-sided condition is being treated\u2014include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Underlying cause and severity<\/strong>, such as the degree of pulmonary hypertension, tricuspid valve dysfunction, or right ventricular impairment.<\/li>\n<li><strong>Heart rhythm over time<\/strong>, since persistent atrial fibrillation or recurrent atrial flutter can affect atrial mechanics and symptoms.<\/li>\n<li><strong>Comorbid conditions<\/strong>, including chronic lung disease, sleep-disordered breathing, kidney disease, and liver congestion, which may interact with right-sided pressures.<\/li>\n<li><strong>Follow-up consistency<\/strong>, including imaging or device checks when relevant (the schedule varies by clinician and case).<\/li>\n<li><strong>Procedure- and device-related factors<\/strong> when applicable, such as lead positioning, venous access patency, and the need for future revisions (varies by material and manufacturer for implanted components).<\/li>\n<\/ul>\n\n\n\n<p>Many right atrial findings evolve gradually, so clinicians often focus on <strong>trend and trajectory<\/strong> rather than a single measurement in isolation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Alternatives \/ comparisons<\/h2>\n\n\n\n<p>Since the Right Atrium is not a standalone therapy, alternatives usually mean <strong>different ways to evaluate right-sided heart status<\/strong> or <strong>different procedural routes\/strategies<\/strong> when right atrial access is part of a plan.<\/p>\n\n\n\n<p>Common comparisons include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Observation\/monitoring vs immediate testing<\/strong><\/li>\n<li>\n<p>For mild or nonspecific symptoms, clinicians sometimes begin with monitoring and targeted noninvasive tests rather than invasive evaluation. The appropriate sequence varies by clinician and case.<\/p>\n<\/li>\n<li>\n<p><strong>Echocardiography vs CT vs MRI<\/strong><\/p>\n<\/li>\n<li><strong>Echocardiography<\/strong> is widely used, noninvasive, and provides functional valve and flow information, but image quality can vary.<\/li>\n<li><strong>Cardiac CT<\/strong> can offer detailed anatomy; its use depends on radiation\/contrast considerations and the clinical question.<\/li>\n<li>\n<p><strong>Cardiac MRI<\/strong> can provide chamber volumes and tissue characterization in many settings; feasibility depends on device compatibility and local protocols.<\/p>\n<\/li>\n<li>\n<p><strong>Noninvasive estimates vs invasive hemodynamics<\/strong><\/p>\n<\/li>\n<li>\n<p>Noninvasive methods may estimate right atrial pressure indirectly, while <strong>right-heart catheterization<\/strong> measures pressures directly. Invasive testing is typically reserved for specific diagnostic or management decisions.<\/p>\n<\/li>\n<li>\n<p><strong>Right Atrium\u2013focused vs right ventricle\/pulmonary artery assessment<\/strong><\/p>\n<\/li>\n<li>\n<p>Right atrial findings are often interpreted alongside <strong>right ventricular function<\/strong> and <strong>pulmonary pressures<\/strong>, which may be more directly linked to certain symptoms or prognostic questions.<\/p>\n<\/li>\n<li>\n<p><strong>Catheter-based vs surgical approaches (when treatment is needed)<\/strong><\/p>\n<\/li>\n<li>If a structural issue (for example, significant tricuspid valve disease) is present, treatment pathways may include catheter-based or surgical options depending on anatomy and clinical status. The Right Atrium is commonly part of the access route or operative field, but the choice of therapy is broader than the chamber itself.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Right Atrium Common questions (FAQ)<\/h2>\n\n\n\n<p><strong>Q: Is the Right Atrium the same as \u201cright atrial pressure\u201d on a report?<\/strong><br\/>\nNo. The Right Atrium is the chamber, while \u201cright atrial pressure\u201d is a pressure value measured or estimated in relation to that chamber. Reports may estimate it noninvasively or measure it directly during catheterization, and methods can differ.<\/p>\n\n\n\n<p><strong>Q: Can problems in the Right Atrium cause symptoms?<\/strong><br\/>\nThey can. Right atrial enlargement, elevated filling pressures, valve disease affecting flow through the chamber, or atrial arrhythmias may contribute to symptoms like fatigue, shortness of breath, reduced exercise tolerance, or swelling. Symptoms are not specific to the Right Atrium and require broader evaluation.<\/p>\n\n\n\n<p><strong>Q: How do clinicians check the Right Atrium?<\/strong><br\/>\nMost commonly with echocardiography, which evaluates chamber size and nearby valve function. CT or MRI may be used for more detailed anatomy or when echocardiography is limited. In some cases, right-heart catheterization is used to directly measure pressures.<\/p>\n\n\n\n<p><strong>Q: Does evaluating the Right Atrium hurt?<\/strong><br\/>\nImaging tests like transthoracic echocardiography are typically not painful. Procedures that involve catheters or devices may cause discomfort related to IV\/vascular access and recovery, but experiences vary by procedure and patient.<\/p>\n\n\n\n<p><strong>Q: How long do Right Atrium test results \u201clast\u201d?<\/strong><br\/>\nA measurement describes the heart at that point in time. Right atrial size and function can change with fluid status, rhythm, lung pressures, and progression or treatment of underlying disease. Clinicians often compare results over time using similar methods.<\/p>\n\n\n\n<p><strong>Q: Is Right Atrium enlargement always dangerous?<\/strong><br\/>\nNot always, and it is not a diagnosis by itself. Enlargement can reflect chronic pressure or volume loading, certain rhythm conditions, or congenital anatomy. The clinical significance depends on the cause, associated findings (especially right ventricular function and tricuspid valve status), and symptoms.<\/p>\n\n\n\n<p><strong>Q: Does Right Atrium evaluation require hospitalization?<\/strong><br\/>\nUsually not for standard outpatient imaging. Hospitalization may be involved if the evaluation occurs during an acute illness or if an invasive procedure is performed. The setting depends on the patient\u2019s stability and the test selected.<\/p>\n\n\n\n<p><strong>Q: Are there activity restrictions after a Right Atrium\u2013related procedure?<\/strong><br\/>\nRestrictions, if any, depend on the procedure (for example, a catheter-based study versus device implantation). Some procedures involve temporary limits related to the access site or implanted leads, while imaging alone typically does not. Specific timelines vary by clinician and case.<\/p>\n\n\n\n<p><strong>Q: What affects the cost of evaluating the Right Atrium?<\/strong><br\/>\nCost depends on the test type (echo vs CT vs MRI vs catheterization), location (outpatient vs hospital), insurance coverage, and whether additional monitoring or interventions are performed. Facilities also vary in billing practices and bundled services.<\/p>\n\n\n\n<p><strong>Q: Is it \u201csafe\u201d to place catheters or leads through the Right Atrium?<\/strong><br\/>\nThese are common clinical practices, but safety depends on the procedure, the patient\u2019s anatomy, and comorbidities. Risks may include bleeding, infection, arrhythmia, vascular complications, or rare procedural complications. The risk profile and mitigation steps vary by clinician and case.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Right Atrium is one of the four chambers of the heart. It receives blood returning to the heart from the body through the major veins. It helps move blood into the right ventricle and toward the lungs for oxygenation. Clinicians commonly reference the Right Atrium in imaging, rhythm evaluation, and catheter-based procedures.<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-2457","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Right Atrium: Definition, Uses, and Clinical Overview - Best Spine Hospitals<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bestspinehospitals.com\/blog\/right-atrium-definition-uses-and-clinical-overview\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Right Atrium: Definition, Uses, and Clinical Overview - Best Spine Hospitals\" \/>\n<meta property=\"og:description\" content=\"The Right Atrium is one of the four chambers of the heart. It receives blood returning to the heart from the body through the major veins. It helps move blood into the right ventricle and toward the lungs for oxygenation. 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