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Axial Muscles: Origins, Insertions, and Actions Quiz
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Axial Muscles: Origins, Insertions, and Actions Quiz

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@AmazedDarmstadtium

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Questions and Answers

What muscle is responsible for elevating and closing the jaw?

  • Maxilla
  • Mastoid process
  • Sphenoid
  • Temporalis (correct)
  • What muscle raises the eyebrows and wrinkles the forehead?

  • Levator Labii Superioris
  • Orbicularis Oris
  • Depressor Labii Inferioris
  • Orbicularis Oculi (correct)
  • Which muscle depresses the lower lip?

  • Mentalis (correct)
  • Orbicularis Oris
  • Sternocleidomastoid
  • Levator Labii Superioris
  • Which muscle elevates the corner of the mouth and draws it laterally?

    <p>Zygomaticus major</p> Signup and view all the answers

    When contracted, which muscle flattens and increases the vertical dimension of the thoracic cavity for inhalation?

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

    What muscle compresses and purses the lips?

    <p>Orbicularis Oris</p> Signup and view all the answers

    What bone/marking does the diaphragm insert into?

    <p>Xiphoid process of sternum/costal cartilage</p> Signup and view all the answers

    Which muscle elevates the upper lip?

    <p>Levator Labii Superioris</p> Signup and view all the answers

    Which muscle is responsible for elevating the upper lip?

    <p>Zygomaticus minor</p> Signup and view all the answers

    Which muscle flexes the neck bilaterally and laterally flexes it unilaterally?

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

    Which muscle is involved in elevating the mandible?

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

    Where does the Orbicularis Oris muscle insert?

    <p>Skin of lower lip</p> Signup and view all the answers

    What is the main function of the Internal Intercostals when relaxed?

    <p>Increase dimension of the thoracic cavity for inhalation</p> Signup and view all the answers

    Where does the Rectus Abdominis muscle insert?

    <p>Xiphoid process of sternum</p> Signup and view all the answers

    What action do the External Oblique muscles perform when acting together?

    <p>Compress abdomen and flex vertebral column</p> Signup and view all the answers

    Where does the Transverse Abdominis muscle originate from?

    <p>Iliac crest of ilium</p> Signup and view all the answers

    What role do the Erector Spinae muscles play when contracting together?

    <p>Extend the vertebral column and maintain posture</p> Signup and view all the answers

    How do the Internal Oblique muscles act when contracting separately?

    <p>Rotate column to same side/lateral flexion</p> Signup and view all the answers

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