“By making medical education more interactive and engaging, the medical field could become more accessible and attractive to those who previously might have been put off by traditional medical learning.”

In 2014 radiology professor Mark Griswold was looking for a new way to teach anatomy. Running a cadaver lab can be expensive, and corpses offer surprisingly limited views into the body. In the midst of his search, he was invited to Microsoft’s top secret testing facility. He expected to be shown a virtual reality headset, a potentially useful tool for teaching. Instead, technicians outfitted him with something even more groundbreaking: a mixed reality headset, called HoloLens, the first self-contained computer that allows users to see holograms amid their surroundings.

The experience was so overwhelming that he had to sit down: “I immediately knew my world had changed that day.” The headset, he realized, would be invaluable in the classroom.

Griswold and his colleagues at Case Western Reserve University and Cleveland Clinic set out to design a program for HoloLens that would revolutionize anatomy lessons. Last year they released HoloAnatomy, a demonstration application that transforms images into 3-D models of the human body’s bones and organs and enables students to explore their shape and movement from every angle.

Virtual reality immerses users into an alternate world, removed from their surroundings. HoloLens is different: “Physical and holographic objects coexist and interact in real time,” says Microsoft’s Lorraine Bardeen. In classrooms this means students can communicate with teachers, peers, and a holographic display during a lesson.

 “I don’t see a class on campus that won’t be affected by the technology,” says Griswold.

Put on the HoloLens visor… and you’ll find yourself staring at a life-size, 3D human figure, with every vein and artery in perfect bodily placement and scale. You can walk around this anatomically correct scaffold, spying organs and tissues from any angle, and poke your head in to see the interior of, say, a heart. Within, you’ll see that organ’s distinct chambers—and within those, the discrete valves.

What is most striking is that this body seems to take up real physical space. Everyone who dons the goggles sees the same images, making medical instruction easier—and the fact that you experience the real world along with the virtual one makes conversation and consultation easier, too.

The idea is to teach students anatomy in a way that they absorb the knowledge more readily, more intuitively—and more quickly. Seeing and “touching” intertwined veins and arteries as they navigate through the human form gives you an understanding of circulation that is difficult (or maybe impossible) to get by studying even the most finely etched schematic in a textbook.