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Digestive System I:GastrointestinalTract, เลขที่ 13 รหัสนิสิต 64521402 …

- - - - non-keratinized stratified squamous epith.
    - - Fungiform papillae
        
        tratified squamous epith. with taste buds
        
        Shaped-like mushroom
      - Circumvallate papillae
        
        ateral cleft called trench
        
        keratinized stratified squamous epith. with taste buds around cleft
        
        Dome-shaped
      - Filiform papillae
        
        ไม่มี taste buds
        
        keratinized stratified squamous epith.
        
        brush-like processes
      - Foliate papillae
        
        non-keratinized stratified squamous epith. with taste buds
        
        Leaf–like ridges
        
        Only found in fetus
  - - - stratified squamous epith. with skin appendages
    - - keratinized stratified squamous epith.
    - - mixed seromucous gland
      - covered by non-keratinized stratified squamous epith.
  - - - Dentin & Enamel
      - Periodontal membrane attached teeth with gum
    - - Dental pulp
      - nerves & blood vss.
- - - - Simple squamous epith.
    - - Smooth muscle 3 layer
        
        middle circular
        
        outer longitudinal
        
        inner oblique
    - - gastric glands
        
        Zymogenic cells
        
        secrete pepsinogen & gastric lipase
        
        Oval nucleus to base
        
        Oxyntic cells
        
        Oval nucleus in center
        
        secrete HCl
        
        Mucous neck cells
        
        protect acid
      - Simple columnar epith.
  - - - Lumen
        
        floated cut intestinal villi
      - Mucosa และ Submucasa
        
        plica circularis
      - Muscularisexterna
      - Serosa
    - - Mucosa
        
        simple columnar epith. with many goblet cells
      - Submucosa
        
        ymphatic nodules called Peyer’spatches
      - Muscularis externa
      - Serosa
    - - Mucosa
        
        simple columnar epith. with goblet cells
        
        Muscularis mucosae
      - Submucosa
        
        Brunner’s gland
      - Muscularis externa
        
        Smooth muscle
      - Adventitia
  - - - Middle : skeletal & smooth m.
      - Lower : smooth m.
      - Upper : skeletal m.
    - - most of collagen fibers
    - - Esophageal gland
    - - Non-keratinized stratified squamous epith.
  - - - Simple columnar epith.with goblet cells
      - intestinal gland
    - - blood vss. & lymphatic nodule
      - No gland
  - - - less found intestinal gland
    - - lymphoid tissue &lymph nodule
  - - - stratified squamous
      - nogland
    - - simple columnar epith.
      - intestinal gland