Building functional human muscle in the laboratory has long been a goal of regenerative medicine, but one stubborn obstacle remains: real muscle is not just a mass of cells. Its strength and function ...

Building functional human muscle in the laboratory has long been a goal of regenerative medicine, but one stubborn obstacle ...

Building functional human muscle in the laboratory has long been a goal of regenerative medicine, but one stubborn obstacle remains: real muscle is ...

The heart (cyan) forms from two distant regions of the embryo (far left). These regions migrate to the embryo midline, where they fuse into a tube to make the first heart structure (far right).

In developing hearts, cells shuffle around, bumping into each other to find their place, and the stakes are high: pairing ...