Aside from all the different types of endocrine glands that we focused on previously, there exist other organs in our body that also have endocrine capabilities. That is, many organs in our body have the ability to actually produce hormones and release them into our bloodstream. So let's discuss these other organs that also have endocrine capabilities. So we have have kidneys, we have the heart, we have the skin, we have the pineal gland or the pineal body, we have the liver and we have our stomach. So let's begin by briefly discussing some of the hormones released by our kidneys. Now, the two hormones that we're going to discuss is Erythropoietin and also our calcitriol.