Digestive System Lab Notes
Digestive System Lab Notes 272-01LL
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This 2 page Class Notes was uploaded by Juliana Bernard on Wednesday April 15, 2015. The Class Notes belongs to 272-01LL at University of Massachusetts taught by Dr. Gordon in Spring2015. Since its upload, it has received 111 views. For similar materials see Anatomy and Physiology II Lab in Kinesiology at University of Massachusetts.
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Date Created: 04/15/15
Digestive System Lab Responsible for knowing these anatomical components Oral cavity Uvula Hard palate Soft palate Teeth Lingual tonsils Palate tonsils Pharyngeal tonsils Pharynx Epiglottis Esophagus Stomach Esophageal sphincter Lesser curvature Greater curvature Fundus Cardiac region Body Pyloric region Pyloric sphincter Rugae Liver Gallbladder Pancreas Pancreatic duct Right hepatic duct Left hepatic duct Common hepatic duct Cystic duct Common bile duct Round ligament of liver Duodenal ampulla Histology Epithelial cells Goblet cells Smooth muscle Mucosa innermost layer epithelial cells containing goblet cells Small Intestine Duodenum Jejunum lleum Plicae circulates Large Intestine Cecum lleocecal junction Vermiform appendix Ascending colon Transverse colon Descending colon Sigmoid colon Rectum Submucosa layer of connective tissue may find additional mucous glands and blood vessels Muscularis externa contains 2 different layers of smooth muscle transverselongitudinal directions Serosa outermost layer connective tissue around outside Stomach Esophageal sphincter loose sphincter reason for heartburn Fundus where food enters initially upon entrance to stomach Cardiac region junction between esophagus and beginning portion of stomach Body region where most stomach contents reside Pyloric region endmost region of stomach Pyloric sphincter tight sphincter leads to small intestine Lesser curvature side closest to liver Greater curvature side closest to large intestine mportance of these curvatures is the fact that a thick connective tissue like substance fits in between them an allows the stomach to be adhered to the surrounding organs also provide protection to blood vessels traveling to and from these organs Greater and Lesser omentum is thisquot connective tissue structure that fits in these curvatures Another section of omentum transverse mesocolon that sits above large intestine Small Intestine 22 ft in length Duodenum first 10 region of the small intestine where the major ducts enter to digest foods Jejunum next 810 feet lleum final 810 feet ileocecal junction where ilium meets cecum Large lnetestine Cecum Vermiform appendix little appendage hanging off of inferior direction of cecum appendix contains bacteria part of lymphatic system Ascending colon travels up from cecum Transverse colon from ascending to descending Descending colon travels downward from transverse Sigmoid colon travels from descending to rectum Accessory organs Liver Contains 2 ducts allowing bile to travel from each liver lobe down into duodenum LR hepatic duct Common hepatic duct where left and right hepatic duct combine Round ligament distal end of liver remnant of umbilical vein part of circulatory system of fetus Falsiform ligament superior side of liver separates lobes of liver Gallbladder small organ found on inferior side of liver stores bile created from recycling RBCs Cystic duct moves bile from gall bladder down into small intestine merges specifically with common hepatic duct before it then enters into sm lntestine Common bile duct section after cystic and common hepatic merge Pancreas sits on posterior wall of stomach pancreatic duct tube like structure running down middle of pancreas and enters into sm Intestine White opaque representation needs to send all pancreaticjuices which have digestive enzymes into duodenum to aid in digestion Type 1amp2 cells of pancreas responsible for maintenance of other chemicals or hormones released from pancreas Duodenal ampula section where common hepatic and pancreatic ducts fuse together before entering into duodenum
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