There is no such organ as an endocrine. The endocrine system is made up of glands that secrete hormones directly into the blood stream (not via a duct) for example, pituitary gland, adrenal glands,...
The respiratory system brings the endocrine system oxygen. A small fraction of your breathing is also controlled by the endocrine system. A response to stress in the epinepheran in the endocrine...
I do believe that the all the systems of the body, except the skeletal (but then again maybe even that), all interact with the endocrine. Remember the sends messages by chemicals. Therefore allowing...