is called the master gland, because the hormones it produces control so many different processes in the biology. It regulates the adrenal gland, liver, bone, thyroid, gonads and metabolism. When you are in a low state of consciousness, being fearful, stressed or emotional, the pituitary gland secrets hormones to protect the biology.
The endocrine system is made up of the pituitary gland, pineal gland, thyroid gland, parathyroid glands, adrenal glands, pancreas, ovaries (in females) and testicles (in males). The liver and pancreas are both exocrine and endocrine glands; they are exocrine glands because they secrete products such as bile and pancreatic juices into the gastrointestinal tract through a series of ducts. The endocrine system secretes other substances directly into the bloodstream or circulatory system.