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- 1.Explain the role of the pancreas in digestion. 2.Describe the location and key structures of the pancreas.5 Mark the following statements as true (T) or false (F). If the statement is false, correct it so it becomes a true statement. a. The peritoneal cavity is located between the visceral peritoneum and the mesentery. b. The longest segment of the small intestine is the duodenum. c. The stomach has three layers of smooth muscle that contract to churn food into chyme. d. The gallbladder produces and stores bile. e. The small intestine features three sets of progressively smaller folds that increase surface area for absorption. f. The liver consists of plates of hexagonal liver lobules. 6 Label the following structures on Figure 15.35. O Mucosa Circular layer of smooth muscle Longitudinal layer of smooth muscle O Lumen O Serosa O Submucosa O Muscularis mucosae3. What is ductus choledochus? What is the function of this part?4. Which part of the alimentary tract does the pancreas attached with? What are the functions ofthe Wirsung and Santorini pancreatic ducts?
- 2. Name the two regions 0l the ihtestine and the functions they perform. Write the names of different types of teeth present in man. Draw their diagram and me 2. Name the different digestive glands present in the human body. Name the secretion 6. The finger like projections in the inner walls of small intestine are called Define digestion, peristalsis and mastication. 3. What is the function of villi in the small intestine ? Draw its diagram also. 5. Draw the diagram of the digestive system of man and label it. 3. 4. C. Long answer questions: 4 What changes occur in the food in the mouth 2 5. What is assimilation ? Explain in brief. D. Choose the odd one from each of the following : 1. Incisors, canines, tongue, molars, premolars. 2. Stomach, small intestine, oesophagus, lungs,, large intestine. 3. Liver, (kidney, pancreas, salivary glands, gastric glands. 4. Ingestion, digestion, assimilation, excretion, absorption. 5. (Salivary amylase, pepsinogen, pepsin, trypsin, rennin. E. Fill in…1. What is the importance of the presence of goblet cells in the intestinal villi? 2. . How do the accessory organs contribute to the functions of digestive tract?1. Give the boundaries of the oral cavity proper, oral vestibule, & oral cavity. 2. What is amylase and give its role in the digestion of food? 3.Enumerate the different types of lingual papillae & give its functions.
- 11. Explain the difference between rugae, villi, gastric pits, and gastric glands. 12. What are the three parts of the small intestine? What order are they in from the connection to the stomach to the connection to the large intestine? 13. What are the labelled structures? Indicate which parts are retroperitoneal? 1. 2. 3. 4. 5. 6. 7. 8. lave vieninu oleinst b 2 leum8. Describe the anatomy and function of the small intestine. What is the main region of food absorption? Include any ducts which feed into the small intestine.15. Which digestive organ plays an indirect role in blood clotting and maintenance of plasma osmotic pressure? The liver 16. Trace the path of bilirubin (a component of bile) from the right lobe of the liver to the anal canal. Name all the structures through which it would pass. 17. How many organs empty into the duodenum? Name them and what they secrete.
- 11. What are the neural and How does the presence of solutes (partially digested proteins, caffeine, rising pH activate stomach secretion in the gastric phase? What are three chemicals that act on parietal cells and increase their secretion of HCI? 12. What intestinal hormone stimulates the secretion of gastric juice? Under what conditions is this hormone present? 13. 14. What is the enterogastric reflex? 15. What are enterogastrones? (nofmatait nosmore What is the difference between receptive adaptation and adaptive relaxation of the stomach? 16.1. Differentiate between the divisions of small intestine and explain the key structures of the duodenum. 2. Identify and describe structural modifications of the wall of the small intestine that enhance the digestive process.1. Explain development of liver.