A dog's liver filters everything the bloodstream carries — nutrients, medications, and any toxins absorbed from food, plants, or chemicals. Blood enters through the portal vein and hepatic artery, is filtered by rows of liver lobules, and exits clean through the hepatic vein. When toxin intake outpaces the liver's enzymatic capacity, unprocessed particles build up and the tissue becomes inflamed and stressed — the same imbalance that underlies conditions like hepatic lipidosis and chronic hepatitis in dogs.
The liver is one of the few organs that can regenerate — a dog's liver can regrow functional tissue even after losing up to 70% of its mass, provided the underlying cause of damage is removed early enough.
An interactive 3D model of a dog's liver, showing blood and toxins flowing through the portal vein and hepatic artery, being filtered by liver tissue, and exiting clean through the hepatic vein — with stress, swelling, and color shifting in real time as you change toxin load and enzyme activity.
When toxin intake outpaces the liver's enzymatic clearance capacity, unprocessed particles back up inside the organ, tissue color shifts from healthy purple toward inflamed red, and the liver visibly swells — mirroring how hepatic stress and disease progress in real dogs.
Raise the toxin load to simulate a poor diet, toxic plants, or medication overload. Raise enzyme activity to simulate a healthy, well-supported liver. Toggle the fatty liver overlay to see how fat infiltration (hepatic lipidosis) changes the organ's size and color.
A dog's liver can regenerate functional tissue even after losing up to 70% of its mass — provided the source of ongoing damage is identified and removed in time.