in Chemical Coordination and Regulation (Endocrine System) by

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  1. Pituitary gland (one)
  2. Thyroid gland (one)
  3. Parathyroid gland (two pairs)
  4. Adrenal gland (one pair)
  5. Pineal gland (one)
  6. Thymus gland (one)
  7. Ovaries (one pair in females only)
  8. Tests (one pair in males only)
  9. Pancreas (one) (Islets of Langerhans)
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