Video 3. Spreading of a human platelet and a chicken thrombocyte on collagen (MOV, 6.09 MB) - This video shows the early stages of attachment and spreading of a human platelet (left) a chicken thrombocyte onto an acid-soluble collagen-coated substrate (100 µg/ml) by RICM. The movie is accelerated 30 times and the time stamp presents min:sec. The scale bar represents 3 µm.