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