<prompt> Fibrinogen is present in which of the following granules of platelet?abgd  <response>: Platelets play a critical role in normal hemostasis. Their function depends on several glycoprotein receptors, a contractile cytoskeleton, and two types of cytoplasmic granules. a-Granules have the adhesion molecule P-selectin on their membranes and contain fibrinogen, fibronectin, factors V and VIII, platelet factor 4 a heparin-binding chemokine, platelet-derived growth factor PDGF, and transforming growth factor-b TGF-b. Dense or d granules contain ADP and ATP, ionized calcium, histamine, serotonin, and epinephrine. Ref: Robbins 8th edition Chapter 4. 