Compare smooth and striated muscles in terms of thick and thin filaments, calcium trigger, sarcoplasmic reticulum, regulation of contraction, and rate of contraction
What will be an ideal response?
Answer: The thick and thin filaments differ between smooth and striated muscle; in the former, the filaments are not arranged into sarcomeres, whereas in the latter, the filaments are arranged as sarcomeres. In smooth muscle, the calcium trigger is calmodulin, while in striated muscle it is troponin. There is not much sarcoplasmic reticulum in smooth muscle, while it is often abundant in striated muscle. Thick and thin filaments regulate contraction in smooth muscle, while the thin filament is mostly responsible for regulating contraction in striated muscle. When it comes to rate of contraction, the rate is lower in smooth muscle compared to striated muscle.
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