Hjertenyrefunksjon

Hjertenyrefunksjon refers to the function of the heart's ventricles, which are responsible for pumping blood out of the heart. The ventricles play a crucial role in the cardiovascular system by receiving blood from the atria and then ejecting it into the pulmonary and systemic circulations. The process of ventricular function involves several key phases:

Systole: During systole, the ventricles contract, pushing blood out of the heart. This phase is divided into isovolumic contraction, where the ventricles contract without changing their volume, and ejection, where the ventricles pump blood out of the heart.

Diastole: During diastole, the ventricles relax and fill with blood. This phase is also divided into isovolumic relaxation, where the ventricles fill without changing their volume, and filling, where the ventricles receive blood from the atria.

Ventricular function is influenced by several factors, including heart rate, contractility, preload, and afterload. Abnormalities in ventricular function can lead to conditions such as heart failure, hypertrophy, or arrhythmias. Regular monitoring and assessment of ventricular function are essential for diagnosing and managing cardiovascular diseases. Techniques such as echocardiography, cardiac MRI, and cardiac catheterization are commonly used to evaluate ventricular function.