When muscle cells are viewed under the microscope ... Within the sarcomere, myosin slides along actin to contract the muscle fiber in a process that requires ATP. Scientists have also identified ...

Muscle cells are full of long protein filaments that can slide past each other to contract the muscle, making it possible for animals to swim, fly or run. Alright time for this animal to run.

Muscle cells contain filaments of protein that slide over each other to cause muscle contraction. The arrangement of these filaments causes the banded appearance of heart muscle and skeletal muscle.

The new research reveals a novel mechanism for signal transmission in brain cells and helps answer an open question in neuroscience about how intracellular signals travel over long distances in ...