Cardiovascular system. What makes the heart function from a sedentary and an athlete point of view

I have a B.Sc in Physiotherapy and Rehabilitation with 2 years of experience working in healthcare workshops in anatomy and physiology in Sports science. The lesson today will be on ventricular output and the capacity of the left in comparison to the right ventricle. We will learn what structures physiologically make up the compounds that separate each chamber of the heart.