To visualize the beating heart and vasculature of a chick embryo (72 hours old), ink is injected into its yolk sac artery with a finely drawn glass capillary needle. A window is cut into an egg to expose the embryo and then placed under a stereo microscope (Zeiss Stemi 2000-C; 10x magnification). Video by By Anna Franz, Sir William Dunn School of Pathology, Oxford and MBL, Woods Hole.
Tuesday, 19 January 2016
Injecting ink into a fertilized chicken egg yolk reveals beautiful branching arteries
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