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Chambers of the Heart

Chambers of the Heart

The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
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Mitral Regurgitation I: Introduction

Mitral Regurgitation I: Introduction

Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...

Anatomy of the Heart

Anatomy of the Heart

The heart is a hollow, muscular organ approximately the size of a fist, consisting of four chambers. It is enclosed in the pericardium, a fibrous sac with two layers: the visceral and parietal pericardium, separated by a fluid-filled space containing serous fluid to reduce friction.
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Chambers of the Heart
The heart is made up of four...

Anatomy of the Heart

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The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.

Mitral Stenosis I: Introduction

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Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...

Cardiac Catheterization II: Right Heart Catheterization

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Related Experiment Video

Updated: May 11, 2026

Chronic Ovine Model of Right Ventricular Failure and Functional Tricuspid Regurgitation

Chronic Ovine Model of Right Ventricular Failure and Functional Tricuspid Regurgitation

Published on: March 17, 2023

Double-chambered right ventricle: a review.

Marios Loukas¹, Brian Housman, Christa Blaak

¹Department of Anatomical Sciences, School of Medicine, St George's University, Grenada, West Indies.

Cardiovascular Pathology : the Official Journal of the Society for Cardiovascular Pathology

|May 25, 2013

Summary

A rare congenital heart defect, double-chambered right ventricle, obstructs blood flow. This condition, often seen in infants, involves the right ventricle splitting into two distinct pressure chambers.

Keywords:

Anomalous muscle band Congenital heart disease Crista supraventricularis Heart defect Moderator band Septoparietal trabeculations Subinfundibular pulmonary stenosis

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Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography

Published on: October 28, 2020

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Last Updated: May 11, 2026

Chronic Ovine Model of Right Ventricular Failure and Functional Tricuspid Regurgitation

Chronic Ovine Model of Right Ventricular Failure and Functional Tricuspid Regurgitation

Published on: March 17, 2023

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography

Published on: October 28, 2020

Area of Science:

Cardiology
Pediatric Cardiology
Congenital Heart Disease

Background:

A double-chambered right ventricle is a rare congenital cardiac anomaly.
It is characterized by the right ventricle dividing into a high-pressure proximal and low-pressure distal chamber.
This malformation typically presents in infancy or childhood, but rare adult cases exist.

Purpose of the Study:

To provide a comprehensive overview of double-chambered right ventricle.
To discuss the anatomy, embryology, presentation, diagnosis, and treatment of this rare heart defect.

Main Methods:

Review of relevant cardiac anatomy and embryology.
Discussion of clinical presentation and diagnostic modalities.
Outline of current treatment strategies.

Main Results:

The defect results from anomalous muscle tissue, hypertrophied trabeculae, or aberrant moderator band.
These causes lead to progressive obstruction of the right ventricular outflow tract.
Diagnosis involves imaging and hemodynamic assessment.

Conclusions:

Double-chambered right ventricle is a rare congenital defect causing outflow tract obstruction.
Early diagnosis and appropriate management are crucial for patient outcomes.
Further research into optimal surgical and medical interventions is warranted.