Anatomy of the Neck Quiz
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Questions and Answers

What is the nerve supply of the platysma muscle?

  • Hypoglossal nerve
  • Ansa cervicalis (ventral rami of C1-C3)
  • Accessory nerve (motor) and branches from ventral rami of C2 and C3
  • Cervical branch of facial nerve (correct)
  • What is the action of the sternocleidomastoid (SCM) muscle when contracted bilaterally?

  • Flexion of the head and neck, especially against resistance (correct)
  • Depression of the hyoid bone
  • Lateral flexion of the head and neck to the same side
  • Rotation of the head and neck to the opposite side
  • Which muscle is responsible for depressing the hyoid bone?

  • Sternothyroid
  • Sternohyoid (correct)
  • Omohyoid
  • Thyroid
  • Where does the inferior belly of the omohyoid muscle attach?

    <p>Superior border of scapula</p> Signup and view all the answers

    What is the function of the thyroid muscle?

    <p>Elevate the larynx</p> Signup and view all the answers

    Which muscle divides the anterolateral part of the neck into anterior and posterior triangles?

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

    What structure extends anteriorly from the inferior border of the mandible to the superior border of the manubrium?

    <p>The neck</p> Signup and view all the answers

    Which compartment of the neck contains the cervical vertebrae, spinal cord, cervical spinal nerves, and muscles?

    <p>The vertebral compartment</p> Signup and view all the answers

    Which nerve innervates the skin over the angle of the mandible, parotid gland, and both surfaces of the lower part of the auricle?

    <p>The great auricular nerve</p> Signup and view all the answers

    At what level is the hyoid bone located?

    <p>C3</p> Signup and view all the answers

    Which nerve innervates the skin over the upper part of the pectoral major and deltoid muscles?

    <p>The supraclavicular nerves</p> Signup and view all the answers

    Which nerve innervates the skin over the lateral part of the occipital region and upper part of the medial surface of the auricle?

    <p>The lesser occipital nerve</p> Signup and view all the answers

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