• adrenal gland
  • corpora allata
  • corpora cardiaca
  • corpus luteum
  • hypothalamus
  • islets of Langerhans
  • liver
  • lymph gland or lymph node
  • ovary
  • pancreas
  • parathyroid gland
  • pineal gland
  • pituitary gland
  • testis or testicle
  • suprarenal gland
  • thymus
  • thyroid gland

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