Mondo Knows Facts
Heart cardiac muscle works continuously without fatigue
Specialised myocardial fibres generate rhythmic contractions throughout life
Unlike skeletal muscle tissue, the myocardium consists of specialised cardiac cells packed with mitochondria. These organelles continuously generate energy, allowing the heart muscle to contract over 100,000 times a day without experiencing fatigue or muscle cramps.
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Tags: heart, muscles, cardiovascular
Heart cardiac muscle works continuously without fatigue: the short answers
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- Specialised myocardial fibres generate rhythmic contractions throughout life. The figure is taken from NIH, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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