Which three structures are the liver's three main components?

1. The hepatocyte is the liver's main cell type and makes up around 80 percent of the organ by volume. 2. Grooves between adjacent hepatocytes form bile canaliculi, the small ducts that collect the bile they make. 3. Hepatic sinusoids are open, porous blood spaces fed by the hepatic portal vein and hepatic artery. 4. Those three, hepatocytes, bile canaliculi and hepatic sinusoids, are the liver's main components. 5. Acini and islets are the exocrine and endocrine units of the pancreas instead. 6. Rugae and gastric pits belong to the stomach, and villi and lacteals to the small intestine. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 23 "The Digestive System", section 23.6 Accessory Organs in Digestion: The Liver, Pancreas, and Gallbladder_