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elderly male, stomach cancer, feeding tube in alimentary canal, gall…

- - - - 90% of digestion occurs here
      - absorption of nutrients and minerals from food
    - - absorb water, minerals, remaining nutrients
      - leftover waste into bowl movement
    - - mixer and grinder of food
      - acid and enzymes break down food
    - - control over bowl movements
      - contains sphincter muscles
    - - undergoes peristalsis
      - delivers food to stomach
    - - process the nutrients absorbed from small intestine
      - bile production
    - - chewing breaks down food
      - saliva chemically breaks down food
    - - holds bile produced
      - concentrates bile
    - - produces enzymes thatbreak down sugars, fats, proteins, starches
      - endocrine function that regulates blood sugar
  - - - jejunum
        
        attached to posterior abdominal wall by mesentery
        
        double layer of peritoneum
        
        begins at duodenojejunal flexure
        
        distal part of small intestine
      - ileum
        
        opens to large intestine
        
        last part of small intestine
        
        11.5 feet long
      - duodenum
        
        25-30 cm long
        
        C- shaped
        
        continuation of pylorus
    - - transverse colon
        
        longest part of colon
        
        runs horizontal
      - descending colon
        
        splenic flexure to sigmoid colon
        
        stores remains of digested food
      - ascending colon
        
        8 inches long
        
        small pouches along the walls to increase it surface area
      - sigmoid colom
        
        25-40 cm
        
        s shaped
      - cecum
        
        pouch like
        
        between ascending colon and appendix
      - rectum
        
        lower gastrointestinal tract
        
        10-15 cm
    - - body
        
        main part
        
        fundic glands
      - pylorus
        
        connects to small intestine
        
        includes pyloric sphincter
      - rugae
        
        surface of stomach
        
        series of ridges
      - sphincter
        
        thick ring of muscle
        
        valve to empty stomach contents
  - - - produced in stomach
      - breaks down proteins into amino acids
    - - produced in the pancreas
      - breaks apart fats
    - - produced in the mouth
      - breaks down large starch molecules to smaller sugar molecules
    - - produced in pancreas
      - break bonds in nucleic acids
- - - - because of the feeding tube
    - - since he got it taken out