Memory The Endocrine SystemVersión en línea Review the organs of the endocrine system and their functions. por Kathy Dilliplane Pancreas Regulates the female reproductive system Pituitary Adrenal Glands Helps the immune system recognize and fight pathogens Regulates calcium levels in the blood. Regulate the male reproductive system Regulates growth and metabolism Parathyroid Glands Pineal Gland Regulates blood sugar levels Thymus Produces melatonin to regulate sleep cycles The body's "Master Gland" that controls the other endocrine organs. Increase heart rate during a "Fight or Flight" response Ovaries Testes Thyroid