This 3D model represents the heart and lungs of a rabbit (Oryctolagus cuniculus), created with a focus on anatomical accuracy and educational clarity. The model demonstrates the close anatomical relationship between the cardiovascular and respiratory systems in a small mammal. The heart shows realistic external morphology, including atrial and ventricular regions, while the lungs display correct lobation, size, and positioning relative to the heart. Together, these organs help illustrate how oxygenated blood circulation and respiration are functionally connected in mammals.