After atrial contraction is complete, the atrial pressure begins to fall causing a pressure gradient reversal across the AV valves. This causes the valves to float upward (pre-position) before closure. At this time, the ventricular volumes are maximal, which is termed the end-diastolic volume (EDV).
How do I obtain Underage Working Papers in New York State? I'm 16 years old. I got a job at a movie theater for the summer, but they require Working Papers (something they called a green card) in order for me to work, since I'm under the age of 18.
1 If you are 16 to 17 years old and are not in school or are leaving school for full time employment, you will need these working papers. 2  You are allowed to work in a factory, cannot work around certain machines, do construction work, help on a motor vehicle, or clean, oil, wipe, or adjust belts on machinery.