DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
As the proplatelet development continues small platelets are formed along the proplatelet processes. Thrombopoietin plays a role in inducing the megakaryocytes to form small proplatelet processes that then form immature platelets and eventually mature blood platelets. Shown in this image is a newly formed, mature, activated platelet after megakaryocyte differentiation. Mature activated platelets have numerous cytoplasmic extensions and channels of the open canalicular system (OCS) seen in this image. Magnification: x5,335 when shortest axis printed at 25.
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