Comparison of Skeletal, Smooth, and Cardiac Muscles
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Questions and Answers

What type of muscle has visible striations?

  • Cardiac muscle
  • Single-unit smooth muscle
  • Skeletal muscle (correct)
  • Multiunit smooth muscle

Which type of muscle has fibers that are shorter than skeletal muscle fibers?

  • Multiunit smooth muscle
  • Skeletal muscle
  • Single-unit smooth muscle
  • Cardiac muscle (correct)

Which muscle type has thick myosin and thin actin filaments that slide by each other?

  • Cardiac muscle (correct)
  • Multiunit smooth muscle
  • Somatic nervous system
  • Single-unit smooth muscle

In which type of muscle is the mechanism of contraction regulated by Ca²+ ions?

<p>Cardiac muscle (C)</p> Signup and view all the answers

Which type of muscle is influenced by hormones in its function?

<p>Cardiac muscle (D)</p> Signup and view all the answers

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