week 13 sectional anatomy paper.docx

week 13 sectional anatomy paper.docx - Pancreas The...

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Pancreas The pancreas is a wing-shaped gland that extends from the duodenum (the upper portion of the small intestine) to the spleen. The pancreas aids in digestion by producing enzymes that digest several types of nutrients, including proteins, fats, carbohydrates, and nucleic acid, a common acid that acts as building block in DNA and is essential for all living things. The pancreas also produces large amounts of fluid that protects the lining of the small intestine from the acidic chyme (partially-digested food) that it receives from the stomach. The pancreas also functions as an endocrine gland by producing two very important hormones that help regulate the level of sugar in the blood: insulin and glucagon . Spleen The spleen is a fist-sized organ of the lymphatic system that operates as filter for blood. It helps ward off infections and maintains body-fluid balance. In addition to filtering blood through pulp-like tissue, the spleen also houses two very important types of immunity-related white blood cells: lymphocytes and phagocytes. Some of the spleen’s other functions include: Cleaning impurities from the blood Destruction and removal of old red blood cells Storing blood in case of emergency, such as trauma The stomach is an intraperitoneal digestive organ located between the esophagus and the duodenum. It primarily lies within the superior aspect of the abdomen in the epigastric and umbilical regions. The stomach has four main anatomical divisions; the cardia, fundus, body and pylorus: Cardia – surrounds the superior opening of the stomach at the T11 level. Fundus – the rounded, often gas filled portion superior to and left of the cardia.
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  • Fall '16
  • unknown
  • Arteries of the abdomen, Abdominal aorta, transverse colon

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