why is the heart most important part of our body [if it stops we die but why dont our - Science - Respiration in Organisms

Question

why is the heart most important part of our body [if it stops we
die but why dont our cells die???????

resources · Accepted Answer

The heart is one of the most important organs in the entire
human body It is really nothing more than a pump, composed of
muscle which pumps blood throughout the body, beating approximately
72 times per minute of our lives The heart pumps the blood, which
carries all the vital materials which help our bodies function and
removes the waste products that we do not need For example, the
brain requires oxygen and glucose, which, if not received
continuously, will cause it to loose consciousness Muscles need
oxygen, glucose and amino acids, as well as the proper ratio of
sodium, calcium and potassium salts in order to contract normally
The glands need sufficient supplies of raw materials from which to
manufacture the specific secretions If the heart ever ceases to
pump blood the body begins to shut down and after a very short
period of time will die

why is the heart most important part of our body. [if it stops we die but why dont our cells die???????