Muscles in Anatomy: Definition and Function

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Questions and Answers

Which type of muscle is found in the walls of viscera and blood vessels?

  • Striated muscles
  • Skeletal muscles
  • Cardiac muscles
  • Smooth muscles (correct)

What type of nerve fibers supply cardiac muscles?

  • Parasympathetic nerve fibers
  • Somatic nerve fibers
  • Autonomic nerve fibers (correct)
  • Sympathetic nerve fibers

Which muscle type has multiple peripheral nuclei?

  • Cardiac muscles
  • Striated muscles
  • Smooth muscles
  • Skeletal muscles (correct)

What is the characteristic feature of parallel skeletal muscles?

<p>Fibers parallel to each other (A)</p> Signup and view all the answers

Which type of skeletal muscle is characterized by muscle fibers arranged in the form of a circle around the openings?

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

What is the function of fixator muscles in skeletal muscle action?

<p>Stabilize the origin of prime movers (B)</p> Signup and view all the answers

What is the role of antagonistic muscles in skeletal muscle movement?

<p>Oppose the action of prime movers (B)</p> Signup and view all the answers

How are circular skeletal muscles different from fusiform pennate muscles?

<p>Circular muscles have fibers arranged in a circle around openings (B)</p> Signup and view all the answers

What is the main function of synergistic muscles in skeletal muscle action?

<p>Steady and eliminate unwanted movements (A)</p> Signup and view all the answers

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