This useful chart of The Endocrine System shows the location of glands on the body. Each gland is seperately illustrated and labeled and the hormones it secrets are listed. Shows the following glands: thyroid, parathyroid, thymus, adrenal, pineal, pituitary. Also includes the organs that have a secondary endocrine function producing and releasing hormones. The heart, kidney, stomach, duodenum, jejunum, pancreas, ovary, placenta, and testes and the hormones they secret are shown.