Biology 232 L Review: Microscopic and Gross Anatomy of Skeletal Muscle

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Questions and Answers

What is the criterion for muscles named according to the direction of their muscle fibers?

  • Relative muscle size
  • Direction of muscle fibers (correct)
  • Number of origins
  • Location of muscle origins and insertions

Which of the following is an example of a muscle named after its location?

  • Deltoid
  • Sternocleidomastoid (SCM) (correct)
  • Biceps
  • Rectus

What is the criterion for muscles named according to the number of their origins?

  • Number of origins (correct)
  • Shape of the muscle
  • Relative muscle size
  • Location of muscle origins and insertions

Which of the following is an example of a muscle named after its action?

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

What is the criterion for muscles named according to their relative size?

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

Which of the following structures is a bundle of myofilaments?

<p>Myofibril (A)</p> Signup and view all the answers

What is the connective tissue sheath that wraps around individual muscle fibers?

<p>Endomysium (A)</p> Signup and view all the answers

Which muscle is responsible for stabilizing a structure so that a particular action can be performed?

<p>Fixator (B)</p> Signup and view all the answers

What is the broad sheet of fibrous connective tissue that attaches muscle to muscle?

<p>Aponeurosis (A)</p> Signup and view all the answers

Which of the following structures is the smallest contractile unit of skeletal muscle?

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

What is the muscle that produces an opposing action to the agonist muscle called?

<p>Antagonist (A)</p> Signup and view all the answers

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