The animation begins with an AP view of an upper torso an head, including an opaque overlay of the heart, major vessels to the head, and the brain. The heart demonstrates in normal rhythm with graphic green dots representing the oxygen traveling to the brain. This figure slides to the left of the screen as a cross-section of the brain scales up to the upper right and a cross-section of the beating heart scales up to the lower right side of the screen. Yellow glowing pulses are shown traveling through the walls of the heart and the bottom of the screen also shows a segment of a normal EKG strip with a cursor traveling along the tracing in time with the beat of the animated heart. We then transition into VFib with the strip changing as the pulses become erratic and the ventricles begin to flutter. The graphic green dots are shown slowing and reducing in size as the oxygen to the brain is reduced. The inset of the brain starts to show discoloration as portions of the brain are damaged due to lack of oxygen.
