A 3D Video of the Embryonic Heartbeat
In this video of a mouse embryo, made 8.5 days after conception and one day after the heart has begun to form, the heartbeat is visible. The video was made using a variation on a technique called optical-coherence tomography. It’s being used by researchers at the University of Houston to take the highest resolution video yet of the developing mammalian heart. Their goal is a better understanding of why one percent of US infants are born with cardiovascular problems.