bio

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Author:
lcunrod7
ID:
271615
Filename:
bio
Updated:
2014-04-23 09:33:56
Tags:
esophagus stomach accessory organs
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  1. what is found in upper 3 cm of esophagus, exhibits resting tone to prevent air from entering
    upper esophageal sphincter
  2. what is the opening in diaphragm that lets esophagus pass through
    esophageal hiatus
  3. what is at lower end of esophagus; prevents back flow of materials from stomach
    lower esophageal sphincter
  4. what is the superior, medial part near junction of stomach and esophagus; contains mucous glands to coat and protect esophagus from stomach acid
    carida
  5. what is superior to junction of stomach and esophagus
    fundus
  6. what is the argest region; mixing bowl for ingested food and gastric secretions
    body
  7. what forms sharp curve, near entrance to small intestine
    pylorus
  8. what are olds on inside of stomach; allow stomach volume to expand
    rugae
  9. what secretes alkaline mucus that protects cells in stomach from acidic environment
    mucous cells
  10. what ecrete intrinsic factor which helps the small intestine absorb vitamin B12; secrete HCl
    parietal cells
  11. what produce hormones
    G cells
  12. what secretes pepsinogen, a precursor to pepsin (enzyme that digests proteins)
    chief cells
  13. what are the three accessory organs
    pancreas, liver and gallbladder
  14. what are the two functions of the pancreas
    exocrine and endocrine functions
  15. what function of the pancreas contains pancreatic acini- cells which secrete the pancreatic enzymes which do most of the digestive work in the SI to make materials available for absorption and delivers secretions to duodenum via pancreatic duct
    exocrine function
  16. what function produces hormones that travel in the blood, including insulin, glucagon, somatostatin, and pancreatic polypeptide which work together to control blood sugar
    endocrine function
  17. what is the largest visceral organ
    liver
  18. what has each lobe and is divided by CT into hexagonal-shaped lobules, which are the basic functional units of each liver; lobules contain hepatocytes, which adjust circulating levels of nutrients
    liver
  19. what in the liver are phagocytic cells which engulf pathogens, cell debris, damaged blood cells, heavy metals, lipids, and iron
    Kupffer cells
  20. what in the liver collects blood in each lobule that empty into hepatic veins than dump into IVC
    central vein
  21. what in the liver has blood received from other GI organs so that the liver can filter it before it gets to other areas of the body
    hepatic portal system
  22. what accessory organ stores and concentrates bile and ejects bile into duodenum
    gallbladder

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