Now, let's begin by taking a look at granular sites. Question number one is why do we call them granular sites? Well, if we take a granular side and we have three different types of granular sites, each one of the granular side will look very similar under the microscope. This cytoplasm will contain many of these tiny granules as we see in the following diagram. And what these granules are, they're tiny vesicles that contain special chemicals and molecules that are responsible for initiating and carrying out the process of inflammation, which is a process that exists in our innate or nonspecific immune system. And we'll see exactly what that means in just a moment.