Digestive Hormones

  1. What does Cephalic Stage Activate?
    Activates HCl & IF by Parasympathetic Nerves
  2. What does Intrinsic Factor do?
    Absorb B12
  3. Gastric Phase:
    • Gastrin stimulates Gastric Acid Which secretes HCl & ECL which release Histamines
    • Stimulated by A.A
  4. Parietal cell in stomach:
    Mucus in Stomach:
    Enteroendocrine in stomach:
    Chief in stomach:
    • Parietal cell in stomach: HCl & IF
    • Mucus in Stomach: Rennin (milk hurdle) Gastric Lipase
    • Enteroendocrine in stomach:
    • - G Cell = Found in Gastrin presence of proteins secrete Parietal Cells
    • - D Cell = Secretes Somatostatin inhibits G cell & ECL cells. (stops everything)
    • - ECL Cell = Releases histamines found in fundus of stomache
    • Chief in stomach: Pepsin (Brks down proteins) activated by HCl
  5. Ghrelin & CCK
    Leptin
    • Makes one hungry
    • Curbs hunger
  6. Secretin
    Stimulated by?
    Inhibits?
    Secretes?
    • Found in stomach
    • Inhibits contraction of antrum and release of acid in stomach.

    Stimulates the pancreas when pH <4.5 to secrete H20 & HCO3
  7. CCK
    Inhibits?
    Secretes?
    • Stimulates pancreas to secrete enzymes & HCO3.
    • Inhibits acid secretion in Stomach & GB Contraction
  8. Pancreas:
    Tripsin:
    Carboxypeptides:
    Chymotripsin:
    Dipeptides:
    • Tripsin: Breaks down peptide bonds & activates all other enzymes.
    • Carboxypeptides: Splits amino acids
    • Chymotripsin: Breaks peptide bonds
    • Dipeptides:break amino acids
  9. GIP
    Stimulated/Stimulates?
    Inhibits?
    • Stimulated by small intestine to secrete insulin when increase of Carbs, glucose, or acidic chyme.
    • Inhibits acid secretion
Author
skhan11
ID
214732
Card Set
Digestive Hormones
Description
Digestive Hormones
Updated