And on the back side of the thyroid gland, we have these four individual structures that constitute the parathyroid gland. So the parathyroid gland is found on the backside of the thyroid gland. Now the blood vessel system and the lymph vessel system that basically provide the nutrients and the blood to our thyroid gland also provide the blood and our nutrients to the parathyroid gland. So we see that the thyroid gland is very much connected to the parathyroid gland. Now the next question is what are the hormones or hormone that is released by the parathyroid gland? So we basically only have one hormone.