human anatomy lung and digestive

  1. alveolar type I cells
    simple squamous epithelial cells to promote rapid diffusion of gases
  2. alveolar type II cells
    almost cuboidal in shape and produces pulmonary surfactant.
  3. alveolar macrophage
    (dust cells) engulfs any microorganism.
  4. lungs pleura
    • visceral pleura- tightly adheres to the outside of the lung.
    • parietal pleura- lines the pleural cavity itself
    • pleural cavity- the space between these 2 layers
  5. accessory digestive organs
    teeth, tongue, salivary glands, liver, gall bladder, pancreas.
  6. movement of the digestive system is called...
    • segmentation- is a mixing motion while its moving forward
    • peristalsis- just the movement or wave of contraction to move the crap forward
  7. salivary glands
    • 3 pairs of salvitary glands
    • 1)parotid gland
    • 2) submandibular gland
    • 3)sublingual gland
    • saliva works to kill bacteria, chemical digestion (even though most of this happens in the small intestine) moistens and cleans and lubricates.
  8. mucous cells
    secrete mucin which forms mucus upon hydration.
  9. serous cells
    secretes a watery fluid containing ions, lysozyme and salivary amylase.
  10. wall of the GI tract starting from the inside out
    mucosa, submucosa, muscularis, serosa.
  11. stomach
    creates chyme as it continues the digestive tracts mechanical and chemical digestion.
  12. enteroendocrine cells
    secretes gastrin
  13. chief cell
    secretes pepsinogen (brakes down protein)
  14. parietal cell
    secretes HCl and intrinsic factor
  15. pancreas
    • has both endocrine and exocrine functions
    • exocrine functions involve secreting digestive enzymes and BICARBONATE collectively called pancretic enzyme.
Card Set
human anatomy lung and digestive
human anatomy respiratory and digestive