Starling's law

Starling's law describes how the strength of the heart's contractions depends on the volume of blood filling its chambers before contraction. When more blood enters the heart, the muscle fibers stretch more, leading to a stronger contraction that pumps out more blood. This mechanism helps the heart respond adaptively to changes in blood volume, maintaining balanced circulation. Essentially, the heart adjusts its pumping effort based on how much blood it receives, ensuring efficient blood flow to meet the body's needs.