Hormones are organic chemical substances secreted by ductless glands (or endocrine glands) and are released into the blood stream for onward transportation to their target organs. Examples are: Pituitary, Thyroxin, Adrenalin, Insulin, Estrogens, progesterone, Testosterone, Para hormone, etc.The major endocrine glands include the two Adrenal glands, the Pituitary gland, the four Parathyroid glands, the Sex glands, … Read more
