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What are the similarities of skeletal and cardiac muscles?

Answer

Some of the similarities of skeletal and cardiac muscle include the fact that they are both striated and have contractile proteins with thick and thin filaments arranged in sarcomeres. They have a sliding filament mechanism and are comprised of myofibrils, T-tubule networks, and a sarcoplasmic reticulum. They both force generation and control by calcium ions and are highly dependent on their oxygen supply. They are most similar to slow oxidative fibers, usually resistant to fatigue and provide oxidative phosphorylation to generate ATP.
Reference:
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