Page 298 - Color_Atlas_of_Physiology_5th_Ed._-_A._Despopoulos_2003
P. 298

B.  Hormonal control of blood glucose concentration
                Blood glucose drops            Blood glucose rises
                  below normal                 above normal level
                          5mmol/L                        5mmol/L


                  Pancreas
                 B                             B
           A    cells                    A    cells
          cells             Adrenal     cells                          Carbohydrate Metabolism II
                            medulla
             β 2  rec.  α 2  rec.  Hypothalamus
                                                     Epi-
                       Epi-
                     nephrine                       nephrine
                                                                       Plate 11.10

                          ACTH                          ACTH


                                STH                           STH
                   Adrenal cortex
                                  long-term                      short-term
        Glucagon  Insulin  Cortisol    Glucagon  Insulin  Cortisol

        Stimulates
        Inhibits
        No stimulation      Blood glucose returns to normal
        No inhibition
         C.  Hormonal effects on carbohydrate and fat metabolism
                  Hormone   Insulin   Glucagon  Epinephrine  Cortisol
                  Function  Satiated  Buffer  Hungry  Stress, exercise  Supply
         Glucose
                               Muscle,                        Muscle,
         Uptake by cell        fat                  Muscle    fat
         Glycolysis
         Gluconeogenesis (liver)
         Glycogen            Liver,    Liver     Liver,      Liver
                             muscle              muscle
         Synthesis  Lysis
         Fat                 Liver,
                             fat        Fat      Fat       Fat        285
         Synthesis  Lysis
       Despopoulos, Color Atlas of Physiology © 2003 Thieme
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