Miranda Sun, University Wisconsin Madison
A 50-micrometer section of an 11-day-old mouse embryo head was stained for PECAM1 and laminin, delineating the blood vessels in the developing brain and face. A high density of blood vessels is found in the tissue that is fusing to form the upper lip, below the two black slits that will become the nostrils. Image captured by Miranda Sun, University of Wisconsin-Madison. December 2020.
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