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.
A)The first heart sound occurs at the beginning of ventricular systole. B)The second heart sound is heard when the AV valves closing. C)The first heart sound is the sound of the semilunar valves closing. D)The second heart sound occurs when blood flows into the vena cavae. E)The first heart sound occurs at the beginning of ventricular diastole.