"Create a visual summary of the cardiac cycle using simple drawings and explana

"Create a visual summary of the cardiac cycle using simple drawings and explanations, as if you were explaining it to a . The heart should be represented as a magical two-story house. Show the atria upstairs and the ventricles downstairs. Explain each phase with images and short text: 1. **House in rest**: Draw the relaxed atria and ventricles, with arrows showing blood entering the atria and flowing into the ventricles. 2. **Upstairs helping**: Show the atria squeezing the blood and pushing it into the ventricles. 3. **Home working**: Draw the ventricles by squeezing, with the doors (in valve AV) closing with a 'thump' sound so that the blood does not come back. 4. **Pump the blood**: Show blood being pushed through the ventricles out of the heart, through open semilunar valves, with arrows indicating movement. 5. **Relaxing again**: Draw the ventricles relaxing, with the semilunar valves closing with a 'ta' sound, preparing the heart to start the cycle again."