Stimulating muscle fibers with magnets causes them to grow in the same direction, aligning muscle cells within tissue, Massachusetts Institute of Technology (MIT) and Boston University investigators ...

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 with the wrong cell could mean the difference between a beating heart and one ...

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