IB Biology D.3 Liver

Which blood vessel carries deoxygenated blood away from the liver?

• hepatic artery

• hepatic vein

• hepatic portal vein

• aorta

Which blood vessel carries oxygenated blood to the liver?

• hepatic vein

• vena cava

• hepatic artery

• hepatic portal vein

Which of the following is true of the hepatic portal vein?

I. it carries deoxygenated blood

II. it delivers nutrients from the gut to the liver

III. it takes blood from the heart to the liver

• I and II only

• I and III only

• II and III only

• I, II and III

Why is the hepatic portal vein so important?

• It carries deoxygenated blood to the liver

• It supplies the liver with glucose for aerobic respiration

• It allows the liver to control the levels of nutrients before they are returned to the blood

• It takes broken down toxins away from the liver

Where will blood in the hepatic vein be taken to next?

• vena cava --> left side of heart --> pulmonary artery --> lungs --> right side of heart --> aorta --> hepatic artery

• vena cava --> right side of heart --> pulmonary artery --> lungs --> left side of heart --> aorta --> hepatic artery

• vena cava --> lungs --> left side of heart --> aorta -> hepatic artery

• vena cava --> lungs --> right side of heart --> aorta --> hepatic artery

Bilirubin is a biproduct of...

• Glycogen production

• Phagocytosis by Kupffer cells

• Hemoglobin recycling

• Amino acid deamination

Which of the following are true of a sinusoid?

I. it is involved in the exchange of materials between hepatocytes and blood

II. Kupffer cells contain microvilli for faster exchange

III. blood from the hepatic artery and hepatic portal vein mixes within it

• I and II only

• I and III only

• II and III only

• I, II and III

What is the main role of Kupffer cells in a sinusoid?

• detoxifying blood

• producing plasma proteins

• producing cholesterol

• breaking down erythrocytes

The gall bladder and the liver connect to the ____ which leads to the ___ which then connects to the ___.

• pancreatic duct, common bile duct, duodenum

• common bile duct, pancreatic duct, duodenum

• common bile duct, duodenal duct duct, small intestine

• pancreas, stomach, transverse colon

Which of the following are true of hepatocytes?

I. they release glucose into the blood or store it as glycogen

II. they produce bile salts

III. they package and distribute lipids

• I and II only

• I and III only

• II and III only

• I, II and III