Sympathetic Nervous System Quiz for Medical Students
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Questions and Answers

What is the origin of sympathetic supply to the head and neck?

  • From 7th and 8th thoracic segments
  • From 1st and 2nd thoracic segments (correct)
  • From 5th and 6th thoracic segments
  • From 3rd and 4th thoracic segments

    • Where does the relay of sympathetic supply to the head and neck occur?

  • Superior cervical sympathetic ganglion (correct)
  • Stellate ganglion
  • Inferior cervical sympathetic ganglion
  • Middle cervical sympathetic ganglion

    • What is the effect of sympathetic stimulation on the eye?

  • Mydriasis (correct)
  • Ptosis
  • Miosis
  • Enophthalmos

    • What muscle is responsible for mydriasis during sympathetic stimulation?

    <p>Contraction of dilator pupillae muscle</p> Signup and view all the answers

    What involuntary structure in the eye is affected by sympathetic supply?

    <p>Upper eyelid</p> Signup and view all the answers

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