Extrinsic Muscles of the Thoracic Limb (Small Animal) Quiz
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Questions and Answers

What is the name of the highlighted muscle and its action?

  • Brachiocephalicus. Pull trunk caudally and extend shoulder (when in supporting position) or draw limb cranially and flex shoulder (when not supporting weight).
  • Deep pectoral. Pull trunk cranially and extend shoulder (when in supporting position) or draw limb caudally and flex shoulder (when not supporting weight). (correct)
  • Deep pectoral. Pull trunk caudally and extend shoulder (when in supporting position) or draw limb cranially and flex shoulder (when not supporting weight).
  • Brachiocephalicus. Pull trunk cranially and flex shoulder (when in supporting position) or draw limb caudally and extend shoulder (when not supporting weight).

    • What is the name of the highlighted muscle and its action?

  • Pars mastoidea (of cleidocephalicus). Advance limb, extend shoulder, draw head and neck to the side.
  • Pars cervicalis (of cleidocephalicus). Advance limb, extend shoulder, draw head and neck to the side. (correct)
  • Pars mastoidea (of cleidocephalicus). Advance limb, flex shoulder, draw head and neck to the side.
  • Pars cervicalis (of cleidocephalicus). Advance limb, flex shoulder, draw head and neck to the side.

    • What is the name of the highlighted muscle and its action?

  • Mastoid part (of sternocephalicus). Extend shoulder.
  • Occipital part (of sternocephalicus). Draw head and neck to the side.
  • Occipital part (of sternocephalicus). Extend shoulder.
  • Mastoid part (of sternocephalicus). Draw head and neck to the side. (correct)

    • What is the name of the highlighted muscle and its action?

    <p>Sternothyroideus. Pull tongue and larynx caudally.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Cleidocephalicus (of brachiocephalicus). Advance limb, extend shoulder, draw neck and head to the side.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Occipital part (of sternocephalicus). Draw head and neck to the side.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Rhomboideus capitis. Elevate forelimb and draw the scapula against the trunk.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Omotransversarius. Advance limb or flex the neck laterally.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Cervical part (of trapezius). Elevate and abduct forelimb.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Rhomboideus cervicis. Elevate forelimb and draw the scapula against the trunk.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Descending (superficial) pectoral. Adduct limb (when not weight bearing) or prevent limb abduction (when weight bearing).</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Thoracic part (of trapezius). Elevate and abduct forelimb.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Serratus ventralis cervicis. Support trunk and depress scapula.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Cleidobrachialis (of brachiocephalicus). Advance limb, extend shoulder, draw neck and head to the side.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Transverse (superficial) pectoral. Adduct limb (when not weight bearing) or prevent limb abduction (when weight bearing).</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Latissimus dorsi. Flex shoulder and draw the free limb caudally (as in digging)</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Rhomboideus thoracis. Elevate forelimb and draw the scapula against the trunk.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Serratus ventralis thoracis. Support trunk and depress scapula.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Sternohyoideus. Pull tongue and larynx caudally.</p> Signup and view all the answers

    What is the name of the highlighted muscle and its action?

    <p>Pars mastoidea (of cleidocephalicus). Advance limb, extend shoulder, draw head and neck to the side.</p> Signup and view all the answers

    Study Notes

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    • There is no text to summarize, as the input consists only of repetitive questions about a highlighted muscle and its action, but no actual text or information is provided.

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    Description

    Identify the highlighted muscle, and its origin, insertion, action, and innervation. Test your knowledge of human anatomy and muscle functions.

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