Question

Liver sinusoids are lined by

• A. Parenchymal cells
• B. Endothelial cells
• C. Kupffer cells
• D. Both B and C

Answer 1

The correct option is D Both B and C

Liver consists of small structural and functional units called lobules. Later they are shaped like polygonal cylinders. Each cylinder is composed of plates of polyhedral, glycogen-rich cells, the hepatocytes arranged radially around a central vein. Between the plates are radial blood sinusoids. At the periphery of lobules, branches of the portal vein, hepatic artery, bile ducts and lymphatics course together. A network of tubular spaces between the hepatocytes represent the bile canaliculi. At the periphery of the lobule, the bile canaliculi empty into small Herrings canals walled by cuboidal epithelium. These canals lead into bile ducts walled by columnar epithelium. The sinusoids are lined by incomplete endothelium with scattered phagocytic Kupffer cells.

Thus, the correct answer is option B.