Muscles of the Back and Scapular Region
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Questions and Answers

Which muscle connects the scapula to the humerus?

  • Trapezius
  • Deltoid (correct)
  • Latissimus dorsi
  • Levator scapulae
  • What is the main action of the trapezius muscle?

  • Extend and laterally rotate the arm
  • Elevate the scapula (correct)
  • Raise the medial border of the scapula
  • Flex and medially rotate the arm
  • Which nerve supplies the latissimus dorsi muscle?

  • Dorsal scapular nerve
  • Suprascapular nerve
  • Thoraco-dorsal nerve (correct)
  • Spinal part of accessory nerve
  • What is the function of the levator scapulae muscle?

    <p>Scapular elevation</p> Signup and view all the answers

    Which muscle abducts the arm and extends and laterally rotates it?

    <p>Deltoid</p> Signup and view all the answers

    Which muscle is responsible for elevating the scapula, pulling it medially, and pulling the medial border downward?

    <p>Trapezius</p> Signup and view all the answers

    What is the main action of the rhomboid major muscle?

    <p>Scapular elevation</p> Signup and view all the answers

    What is the function of the latissimus dorsi muscle?

    <p>Extends, adducts, and medially rotates the arm</p> Signup and view all the answers

    Which nerve supplies the levator scapulae muscle?

    <p>Dorsal scapular nerve</p> Signup and view all the answers

    Which muscle connects the scapula to the humerus and has anterior fibers that flex and medially rotate the arm, while posterior fibers extend and laterally rotate the arm?

    <p>Deltoid</p> Signup and view all the answers

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