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the claim
Cardiac muscle resists fatigue unlike skeletal muscle because of its dense mitochondria and constant blood supply.
the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 0 against
Is it true that cardiac muscle resists fatigue unlike skeletal muscle because of its dense mitochondria and constant blood supply?
Yes. A reference article states cardiac muscle cells contain many mitochondria, making them highly resistant to fatigue, and notes the tissue requires a constant flow of blood; a second source confirms cardiomyocytes contain many mitochondria, and a third notes cardiac muscle's ultrastructural organization supports aerobic metabolism and resistance to fatigue.
Verdict: SUPPORTED · 3 sources for, 0 against · Last checked
Evidence for · 3
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Cardiac muscle. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Cardiac_muscle
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More for · 2
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Physiology, Cardiac Muscle - StatPearls - NCBI BookshelfTwitterFacebookLinkedInGitHubNCBI Insights BlogTwitterFacebookYoutube. (n.d.). ncbi.nlm.nih.gov. https://www.ncbi.nlm.nih.gov/sites/books/NBK572070/
Get citation
Makhmudovich, S. S. N. o. H. (2025). STRUCTURE AND FUNCTIONAL ADAPTATIONS OF CARDIAC MUSCLE TISSUE. zenodo.org. https://doi.org/10.5281/zenodo.17487707
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