Internal Environments

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  • Internal Environments
    • Homeostasis
      • keeping the internal body environment constant
      • what the body needs
        • controlled glucose, water and salt levels
        • constant temperature
        • osmosis and active transport to take place
    • Control of blood sugar levels
      • high
        • blood levels increase
          • pancreas releases insulin
            • glucose is converted to glycogen and stored in liver
              • glucose is removed from blood
                • blood glucose concentration is regular
      • low
        • level of blood glucose decreases
          • pancreas releases glucagon
            • glycogen turned into glucose
              • released to blood
                • blood glucose concentration is regular
    • Diabetes
      • type 1
        • young age
        • does not produce insulin
        • insulin injections, healthy eating
      • type 2
        • older, overweight people
        • not enough insulin produced, fat blocks insulin
        • exercise, healthy eating, medication

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