Part F: Post-Lab Questions 1. List all the places where there are sphincters in

Question

Part F: Post-Lab Questions 1. List all the places where there are sphincters in the digestive system 2. Name the organs in the digestive system where there are stratified epithelia. 3. How does the epithelium of the colon differ from that of the small intestine? 4 ·Through which duct can pancreatic luce be released into the small intestine without also releasing bile? 5. Why is a gallstone in the common hepatic duct more of a problem than one in the cystic duct? 6. How is the blood in the hepatic venule different from the blood in the hepatic vein, in terms of CO,? the amount of unprocessed nutrients? amount of Oz versus 7. Why does the liver have a hepatic portal vein and a hepatic vein 98 Borough of Manhattan Community College

Explanation / Answer

1.The sphincters presnt in the digestive system are as follows-

2.Oesophagus- Stratified squamous Epithelium

3.Small intestinal epithelium will have microvilli on them , which will increase the absorption of food .

Whereas in colon, there are tubular crypts present.

4.Pancreatic duct

5. the bile can flow in any direction between the gall bladder , common hepatic duct, and the cystic duct. So even if there is a gall stone in the cystic duct, there will be bile flow in the intestine, which is not the case in the common bile duct obstruction, leading to juandice.

7. Hepatic portal veins carries nutrients from the stomach ,spleen ,intestine gall bladder to the liver.

Hepatic vein will carry deoxygenated blood from the liver and also the blood that is carried from the hepatic portal vein to the Inferior Vena Cava.

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