Did Michael Jordan make the varsity basketball team his junior year. Topics: Sports âº Athletes âº Michael Jordan, Chicago Bulls, Basketball, Celebrities. Reese Dickerson. Yes, after not making the varsity team his sophomore year, Michael Jordan played varsity both his junior and senior year.
The first phase of ventricular systole is known as isovolumetric contraction. During this phase, the pressure in the ventricles increases sharply, but is not yet high enough to open the aortic and pulmonary valves. Therefore, no blood leaves the ventricles.
The cardiac cycle can be divided into ventricular systole and ventricular diastole. Ventricular systole is initiated by an electrical signal passing through the myocardium, which leads to a synchronised contraction and the expulsion of blood into the great vessels.