I want an illustration of a heart seen from the inside, in a coronal section

I want an illustration of a heart seen from the inside, in a coronal section, as the reference image, but inside in the cavities (Auricle and ventricle) de la right personas haciendo actividades físicas y en las cavidades (auricle and ventricle) On the left, people who don't exercise and the heart on that side (left) It's in bad condition, unlike the other side (right) which is beautiful and in good condition.