Microscopic Tubes Inside Beating Heart Cells Work Like Shock Absorbers
Using state-of-the art microscopy, scientists have peered inside cardiac cells while they beat, revealing tube-like structures that buckle and then snap back into shape, much like shock absorbers. The details now appear in Science. Inside each heart muscle cell are tiny structures called microtubules. Using high-resolution, high-speed microscopes, researchers from Perelman School of Medicine in…