Thyroid and Parathyroid Hormones

• Thyroxine


  target: most cells

  effect: regulates metabolism, plays a role in growth and development
• Calcitonin


  target: bone and blood

  effect: lowers blood calcium levels (adds calcium to the bone)
• Parathyroid Hormone


  target: bone and kidney

  effect: elevates blood calcium levels (removes calcium from bone)