Answer: A Prostaglandin
Explanation:
Prostaglandin is a lipid that can be found in most of the organs and tissues. The prostaglandin is produced by the nucleated cells of the body. The prostaglandin function over the uterine, mast cells and endothelium cells of the body. The prostaglandin is synthesized by the arachidonic acid. It is a local regulator in the metabolic reactions. It has the ability to initiate a reaction in one tissue and restrict or stop the same reaction in another tissue depending upon the type of receptor to which it binds.
