Chapter 3 - Hormones

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  • Chapter 3 - Hormones
    • Mammalian hormones
      • Catecholamines
        • produced from amino acids
        • Example: Adrenaline
      • Polypeptides (proteins)
        • Example: Insulin
      • Steroids
        • Example: Testosterone
    • Messengers
      • First messengers
        • The hormones
      • Second messengers
        • cAMP
        • G-protein
    • The pancreas
      • Islets of Langerhans
        • Alpha cells
          • Secrete glucagon when glucose levels fall
            • Increase in rate of glycogen breakdown
            • Increase in glucose production by gluconeogeneis
        • Beta cells
          • Secrete insulin when glucose levels rise
            • Increases GLUT4 channels in the cell membranes
            • Increase in production rate of glycogen
    • Diabetes mellitus

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