Lecture 7 objectives BIO 201.doc

Lecture 7 objectives BIO 201.doc - Lecture 7 objectives BIO...

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Lecture 7 objectives BIO 204 1. Draw a diagrams showing the location of the pancreas in relation to the stomach, liver and the duodenum (part of the small intestine. Draw a larger scale diagram illustrating the joining of the main pancreatic duct with the bile duct and the drainage of the joint duct into the duodenum. 2. Describe pancreatic carcinoma and its dangers. Dangerous condition and represents 5% of all cancers. I t's not clear what causes pancreatic cancer in most cases. Doctors have identified factors, such as smoking, that increase your risk of developing the disease. Pancreatic cancer typically spreads rapidly to nearby organs. It is seldom detected in its early stages. But for people with pancreatic cysts or a family history of pancreatic cancer, some screening steps might help detect a problem early. Can cause diabetes, blood clots, and depression. 3. Describe the microscopic structure and the two functions of the pancreas. The pancreas is a rather flat gland that lies against the posterior wall of the upper part of the abdominal cavity. Its two functions are to secrete digestive enzymes and to secrete hormone that monitors and affects blood sugar levels. 4. Describe the exocrine cells of the pancreas and what they secrete. The exocrine cells are acinar that secrete digestive enzymes. They pass through the duodenum through the system of pancreatic ducts. 1
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5. List all the endocrine cells of the pancreas and the name of the structures in which they are found. Alpha cells- they are housed in the Islet of Langerhans and secrete glucagon. 25% of the IOL Beta cells- they are housed in the core of the Islet of Langerhans, and account for about 75% of the IOL. Secrete insulin Delta cells- secrete somatostatin and make up 5% of Islet cells.
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