The atria are the two upper chambers of the heart. They receive blood returning to the heart and pump it into the ventricles, the lower chambers responsible for pumping blood out to the body and lungs.
Right Atrium
The right atrium receives deoxygenated blood from the body via the superior and inferior vena cava. This blood then flows through the tricuspid valve into the right ventricle.
- Function: Collects deoxygenated blood. Inflow: Superior and inferior vena cava. Outflow: Right ventricle via the tricuspid valve.
Left Atrium
The left atrium receives oxygenated blood from the lungs via the pulmonary veins. This oxygen-rich blood then passes through the mitral valve into the left ventricle.
- Function: Collects oxygenated blood. Inflow: Pulmonary veins. Outflow: Left ventricle via the mitral valve.
Understanding atrial function is key to diagnosing and treating various heart conditions. For example, atrial fibrillation, a common arrhythmia, involves irregular electrical signals in the atria, impacting their ability to effectively pump blood.
Accurate diagnosis relies on methods such as electrocardiograms (ECGs) and echocardiograms. Treatment options range from medication to procedures like cardioversion or ablation.
Regular check-ups with a healthcare professional are advised, particularly if you have a family history of heart disease or experience symptoms such as shortness of breath or palpitations. Early detection and intervention are crucial for optimal heart health.
