Human Anatomy: Muscles of the Neck
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Questions and Answers

What is the primary function of the geniohyoid muscle?

  • Stabilizes the sternum
  • Depresses the hyoid bone
  • Elevates the hyoid and depresses the mandible (correct)
  • Elevates the mandible and retracts the tongue

    • Which cranial nerve innervates the suprahyoid muscles?

  • CN II
  • CN X
  • CN XI
  • CN V3 (correct)

    • What is the role of the external carotid artery branches?

  • They exclusively connect to deep cervical structures
  • They primarily supply superficial structures in the face and neck (correct)
  • They supply blood to the brain
  • They mediate nerve signals in the neck

    • Which of the following muscles is classified as an infrahyoid muscle?

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

    What is a recognized function of the scaleni muscles?

    <p>Elevation of the first rib and lateral flexion of the neck</p> Signup and view all the answers

    Which muscles are classified as infrahyoid muscles?

    <p>Sternohyoid, Sternothyroid, Thyrohyoid, Omohyoid</p> Signup and view all the answers

    What is the primary function of the sternocleidomastoid muscle?

    <p>Neck flexion and rotation</p> Signup and view all the answers

    Which structure is located within the carotid triangle?

    <p>Common carotid artery</p> Signup and view all the answers

    Which of the following statements regarding the scaleni musculature is correct?

    <p>They assist with neck flexion and lateral flexion.</p> Signup and view all the answers

    Which arteries are specifically branches of the external carotid artery?

    <p>Facial artery</p> Signup and view all the answers

    What is the relationship between the ansa cervicalis and the infrahyoid muscles?

    <p>It supplies motor innervation to them.</p> Signup and view all the answers

    Which of the following is NOT a superficial branch of the cervical plexus?

    <p>Phrenic nerve</p> Signup and view all the answers

    What forms the roof of the anterior triangle?

    <p>Investing fascia and platysma</p> Signup and view all the answers

    Which of the following muscles is classified as an infrahyoid muscle?

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

    What is the primary function of the sternocleidomastoid muscle?

    <p>Flexing the neck and rotating the head</p> Signup and view all the answers

    Which of these structures is NOT surrounded by the pretracheal fascia?

    <p>Scalene muscles</p> Signup and view all the answers

    Which of the following best describes the scaleni musculature?

    <p>They primarily assist in elevating the first two ribs.</p> Signup and view all the answers

    What is the role of the ansa cervicalis?

    <p>It innervates most of the infrahyoid muscles.</p> Signup and view all the answers

    Which of the following arteries is a branch of the external carotid artery?

    <p>Facial artery</p> Signup and view all the answers

    Which fascia serves as the floor of the posterior triangle of the neck?

    <p>Prevertebral fascia</p> Signup and view all the answers

    Which of the following describes the external jugular vein's location?

    <p>Superficial to the investing fascia</p> Signup and view all the answers

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