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.
Youth between the ages of 14-17 are required to obtain a work permit. Work permits are issued by your school district. You can obtain a work permit at your local high school. Over the summer or when school is not in session, the work permit may be obtained from the superintendent of schools office in the district where you live. Youth ages 14-17 must obtain a work permit before starting a new job. A Physicians Certificate of Health is required only for 14 and 15 year olds.