The heart muslce works by:The blood comes (oxygenated) from the lungs into the pulmonary vein, which is on the left side of the heart. It then flows into the left ventricle and flows out through the...
The heart provides blood to your muscles so you can move your muscles.
Your lungs send oxygen to your heart so the blood can have oxygen in it
It pumps the blood quicker to get more oxygen to the muscles...
Heart muscles are long, striated, involuntary and fatigueless muscles. They are known as cardiac muslces. The heart is an organ as well as a muscle.