单词	cardiac muscle
释义	cardiac muscle noun : the principal involuntary-muscle tissue of the vertebrate heart made up of striated fibers joined at usually branched ends and functioning in synchronized rhythmic contraction Example Sentences Recent Examples on the Web The researchers behind the paper, based at Harvard, decided to use cardiac muscle cells to power their robot. John Timmer, Ars Technica, 14 Feb. 2022 The whole thing was powered by putting it in a solution with sugar, which the cardiac muscle cells would absorb. John Timmer, Ars Technica, 14 Feb. 2022 Researchers built the fish using paper, gelatin, two layers of cardiac muscle tissue—one on the left side and one on the right—and a plastic fin, per the study. Margaret Osborne, Smithsonian Magazine, 14 Feb. 2022 The findings, though preliminary, indicate it’s possible to prod cardiac muscle cells into regenerating, at least long enough to stave off some of the worst after-effects of a heart attack. Megan Molteni, STAT, 3 July 2021 In the neuromuscular area, the company is looking into multiple diseases driven by genetic defects in skeletal muscle, cardiac muscle and the peripheral nervous system. Mike Freeman, San Diego Union-Tribune, 1 Mar. 2021 To figure out what cells the virus might infect, the researchers directed stem cells to produce cardiac muscle cells, then exposed those to the virus. John Timmer, Ars Technica, 3 Sep. 2020 The first study, conducted by German researchers, found that SARS-CoV-2, the virus that causes COVID-19, can make its way to cardiac muscle tissue in the heart. Maggie O'neill, Health.com, 29 July 2020 Coronavirus has previously been found to invade heart tissue because cardiac muscle cells are rich in ACE2 receptors -- a molecular doorway used by the coronavirus, according to the American Heart Association. Michael Nedelman And Mark Lieber, CNN, 18 May 2020 See More Word History First Known Use 1846, in the meaning defined above Medical Definition cardiac muscle noun : the principal muscle tissue of the vertebrate heart that is made up of elongated striated muscle fibers each of which consists of a single cell that has an intrinsic rhythm of contraction and relaxation even when isolated, is joined physically at its often branched ends to other such cells by intercalated discs, and in intact myocardial tissue is synchronized to function in contraction especially by electrical signals of extrinsic origin passing through gap junctions in the intercalated discs compare smooth muscle, striated muscle
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