Gary McKinnon. Gary McKinnon was known by his Internet handle, âSolo.â Using that name, he coordinated what would become the largest military computer hack of all time. The allegations are that he, over a 13-month period from February 2001 to March 2002, illegally gained access to 97 computers belonging to the U.S. Armed Forces and NASA.
The atrioventricular valves of the heart are important in preventing backflow. The mitral valve prevents backflow into the left atrium, and the tricuspid valve prevents backfl â¦ ow into the right atrium.
1. Relaxation of Ventricles and atria. 2. Blood enters atria from veins returning to heart 3. Atria fill with blood 4. Atria contract (atrial systole) 5. Blood passes into ventricles 6. Through atrioventricilar valves 7. Atrioventricular valves shut to prevent backflow back into atria 8. Ventricles contract (ventricular systole) 9.