However, when Erbacher looked at skin tissue under the microscope, he noticed that nerve fibers did not just grow around skin cells but, to the whole team’s surprise, tunneled straight through them.

Let's take a look at how to observe cells under a microscope. No prizes for guessing ... This series of short films examines the human body through spectacular graphics based on the latest science ...

The research team identified which genes activate at the right time and place to form the skin—the human body's largest organ. Under the microscope, treated with chemicals, these cells resemble ...