Video 1. Extravasation of a leukocyte in vivo in a Tg(spi1:EGFP) embryo (MOV, 2.59 MB)
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A recently-marginated fluorescent leucocyte migrates from a position adjacent to an arteriolar vessel into the extravascular space. The leukocyte assumes a “dumbbell” morphology as it passes between extravascular supporting cells. Video is reconstructed from time-lapse confocal images recorded over a 30 second period.