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.
There are 541 congressmen. This includes 100 senators and 435 members, five delegates and one resident commissioner in the House of Representatives. Sometimes, however, the word congressman is used only to refer to those in the House.