Cardiac Cycle: 1st Systole Phase. During the systole phase, the right ventricle receives impulses from the Purkinje fibers and contracts. The atrioventricular valves close and the semilunar valves open. The de-oxygenated blood is pumped into the pulmonary artery.
Congressional Salaries. As of 2012, the annual salary for any congressman, from first-term representatives to the most senior members -- except those holding leadership positions -- was set at $174,000. This was the compensation level set as of January 1, 2009, and frozen by law in the intervening years.
Less than 2.5 percent make more than $250,000 per year. So in fact, this is not even close to being middle class. The latest Census data shows that in the last 12 months, US households earned a median of $51,000. In my book $51,000 and $250,000 are miles apart.