Endocrine System

• Pituitary Gland


  The MASTER GLAND of the endocrine system and produces growth hormone, prolactin, and adrenocorticotropic hormone
• Thyroid gland


  This produces THYROXINE and CALCITONIN
• Thyroxine


  This produced by the thyroid gland and helps regulate METABOLISM
• Calcitonin


  This is produced by the thyroid gland and helps to regulate CALCIUM LEVELS in the blood
• Parathyroid gland


  This produces PARATHYROID HORMONE, which helps to regulate calcium level in the blood
• Adrenal Gland


  This produces EPINEPHRINE and NOREPINEPHRINE, which help to regulate the fight-or-flight response
• Pancreas


  This produces INSULIN and GLUCAGON, which helps to regulate blood sugar levels
• Ovaries


  This produces ESTROGEN and PROGESTERON, which help to regulate the menstrual cycle
• Testes


  This produces TESTOSTERONE, which help to regulate male and secondary characteristics
• Function of the Endocrine System

  • Growth and Development
  • Metabolism
  • Reproduction
  • Mood
• Lipid-based hormones


  These hormones are made of cholesterol (testosterone and estrogen)

  • Insoluble
• Nonpolar fat-soluble hormones


  These hormones are MADE OF AMINO ACIDS (thyroid hormones).

  • Insoluble
• Water-soluble hormones


  These hormones are MADE OF AMINO ACIDS (epinephrine).

  • Soluble
• Positive feedback mechanism


  This is a process that AMPLIFIES (increase) the change in a given direction
• Negative feedback mechanism


  This is a process that REVERSES the change or SLOW it down