This video tells us about the process of ammonia conversion to less harmful substance urea in the presence of urea cycle.Ammonia detoxification in the liver occurs mainly in periportal hepatocytes in the urea cycle (ornithine cycle), leading to urea formation. Urea is subsequently released into the hepatic veins and then excreted in the urine TIMELINE: 0:09 Introduction 0:48 Processes in tissues 1:35 Processes at muscle level 2:28 What happens in the liver? 3:23 End