When cellular division in the liver is required, how are liver cells 'called back' from G0 phase to G1 phase in order to divide?

The liver plays an important role in the digestion. The reason for this is that when digested nutrients from the small intestine drain directly into veins which connect into the portal vein. Therefore these nutrients need to be filtered as a first stop before going to the rest of the organs. Blood f....

Liver cells or hepatocytes have glucagon receptors. Glucagon can easily target the liver. When glucagon binds to the glucagon receptors it is then converted into individual glucose molecules by liver cell and release them into the bloodstream. This process is known as glycogenolysis. Glucagon afterw....

The portal vein is responsible for transports cholesterol in chylomicrons from the intestine to the liver. Chylomicrons are tiny balls that enclose fatty particles like cholesterol. The hepatic portal vein is one of the most important veins that helps in receiving blood from the body and transports ....