For example, we have mass cells and we have dendritic cells and we're going to focus on these in the next several lectures. So once again, we have three different types of categories of leukocytes. We have granulocytes, a granulocytes and megacariocytes. Megacariocytes are responsible are responsible for actually clotting those cuts that we find in our blood vessels and they also initiate other blood clotting responses. Granulocytes are involved in our inflammation process. They're responsible for also killing off parasitic infections and they're responsible for producing the anticlotting agent known as heparin.