Liver Anatomy and Function Assessment

Dr. Mike explains the structure and function of liver lobules, focusing on the portal triad. The liver receives blood from the hepatic artery and portal vein, with lobules acting as functional units. Blood flows through sinusoids, where nutrients and oxygen mix. Endothelial and Kupffer cells play roles in filtering and immune response. Hepatocytes process nutrients and produce bile, which drains into bile ducts. The video covers the liver's unique blood supply, structure, and functions.

What is the primary function of the hepatic artery in the liver?

• To store nutrients in the liver

• To bring oxygenated blood to the liver

• To remove waste products from the liver

• To transport bile from the liver

How many sides does a liver lobule have?

• Five

• Four

• Six

• Seven

What is the role of the central vein in liver lobules?

• To produce bile

• To store nutrients

• To drain blood from the liver lobules

• To supply oxygen to the liver

What is the significance of the porous nature of liver capillaries?

• It allows red blood cells to pass through

• It blocks the entry of all substances

• It prevents proteins from entering the liver

• It enables the passage of proteins and other substances

What type of cells are Kupffer cells?

• Macrophages

• Red blood cells

• Hepatocytes

• Endothelial cells

What is the primary function of hepatocytes in the liver?

• To transport oxygen

• To store and process nutrients

• To form the central vein

• To produce bile

What is the space between endothelial cells and hepatocytes called?

• Space of Disse

• Central vein

• Portal triad

• Sinusoid

What is bile primarily composed of?

• Red and white blood cells

• Cholesterol, electrolytes, and water

• Oxygen and carbon dioxide

• Proteins and carbohydrates

Which vessels are part of the portal triad?

• Hepatic vein, central vein, and sinusoid

• Central vein, lymphatic vessel, and bile duct

• Portal vein, lymphatic vessel, and central vein

• Hepatic artery, portal vein, and bile duct

Why is the portal triad not typically considered to include lymphatic vessels?

• Because they do not transport blood

• Because they are not located in the liver

• Because they are not visible in imaging

• Because they are not traditionally included in the triad