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Related Concept Videos

Overview of Systemic and Pulmonary Circulation01:15

Overview of Systemic and Pulmonary Circulation

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The systemic and pulmonary circuits are crucial components of the circulatory system, working together to transport blood between the heart, lungs, and the rest of the body. The process begins with pulmonary circulation, where deoxygenated blood is pumped from the right ventricle to the lungs via the pulmonary trunk and arteries. Upon reaching the lungs, the blood becomes oxygenated and returns to the heart, specifically to the left atrium, via the pulmonary veins.
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Overview of Pulmonary Circulation01:19

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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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Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
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The heart, an organ critical to survival, gets nourishment not from the blood it pumps but from a separate circulation system known as coronary circulation. This is the shortest circulation in the body and is responsible for supplying the heart with the nutrients it needs to function effectively.
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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...
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Related Experiment Video

Updated: Mar 15, 2026

Author Spotlight: Establishment and Confirmation of a Postnatal Right Ventricular Volume Overload Mouse Model
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The right ventricle: interaction with the pulmonary circulation.

Michael R Pinsky1,2

  • 1Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA. mpinsky@ucsd.edu.

Critical Care (London, England)
|September 11, 2016
PubMed
Summary

The right ventricle (RV) adapts to stress by altering its function to maintain cardiac output. Understanding RV adaptation is key to diagnosing and treating RV dysfunction and pulmonary hypertension.

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Area of Science:

  • Cardiology
  • Physiology

Background:

  • The right ventricle (RV) is crucial for delivering blood to the pulmonary circulation and optimizing cardiac output.
  • RV function is challenged by varying venous return and metabolic demands during stress and exercise.

Purpose of the Study:

  • To elucidate the adaptive mechanisms of the right ventricle (RV) under various physiological and pathological stresses.
  • To outline diagnostic signs and treatment strategies for RV dysfunction.

Main Methods:

  • Review of physiological principles governing RV function.
  • Analysis of clinical scenarios involving acute and chronic pulmonary hypertension and their impact on RV.
  • Discussion of therapeutic interventions for RV dysfunction.

Main Results:

  • Pulmonary hypertension leads to RV hypertrophy and increased right atrial pressure, impairing left ventricular filling and exercise tolerance.
  • Acute RV outflow obstruction can cause cardiogenic shock.
  • Chronic RV dysfunction may progress to end-stage cor pulmonale requiring advanced support.

Conclusions:

  • RV adaptation to stress involves hypertrophy and altered pressure dynamics.
  • Prompt diagnosis and management of pulmonary hypertension are vital for RV health.
  • Effective treatment of RV dysfunction requires understanding its adaptive responses and available interventions.