Where the energy come from to move fingers?

Question

Where the energy come from to move fingers?

Answer 1

Short-term: ATP in the muscle cells that are connected to the fingers (they are located in the forearm). Actin and myosin bind the ATP and the chemical reaction causes the muscles to contract.

Long-term: ATP comes from the mitochondria, which they produce when they perform glycolysis, from sugar in the bloodstream, from when you eat, from a farm or slaughterhouse somewhere, presumably.