4 February 2016
When was your last anatomy lesson?The heart is an extraordinary muscle that pumps blood throughout the body, delivering oxygen and nutrients while removing waste. This process happens through a series of rhythmic contractions and relaxations known as the cardiac cycle. Understanding how the heart beats in a single cycle can help you appreciate how this vital organ keeps you alive.Phases of the cardiac cycleThe cardiac cycle consists of two main phases: systole and diastole. These terms might ...