Meanwhile, the initial impulse is reflected at both ends of the string and travels back toward the center.

This allows the impulses to travel around the heart very quickly, causing the heart to beat unusually fast.

This electrical impulse travels through the atria making them contract.

The impulses travel from the nodes through the heart muscle fibers along electrical pathways.

Can your device tell you in which direction the impulse is traveling?

With these two possibilities eliminated, no path can be imagined by which impulses might travel from the mother to the embryo.

And since an electrical impulse travels at the speed of light, it requires 1.3 seconds for Pope's voice to reach the Moon.

The impulse then travels through the walls of the ventricles, causing them to contract.

An electrical impulse, invisible, had traveled through the glowing matter.

In atrial fibrillation, multiple impulses travel through the atria at the same time.