Cranial Nerve Motor Levels Quiz
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Questions and Answers

Where does the primary motor cortex and neighboring regions originate?

  • Corona Radiata (correct)
  • Pyramids
  • Pons
  • Internal Capsule
  • Cerebral Peduncles
  • What forms the Anterior and Lateral Corticospinal tracts?

  • Corona Radiata
  • Pons
  • Spinal Cord levels
  • Pyramidal Decussation (correct)
  • Motor cranial nerve nuclei
  • Which structure crosses in the Pyramidal Decussation?

  • Corona Radiata
  • Primary Motor Cortex
  • Internal Capsule
  • Pyramids (correct)
  • Cerebral Peduncles
  • What is the role of muscle tone in the body?

    <p>Nourish muscles and maintain body posture</p> Signup and view all the answers

    Where do the anterior (ventral) horn cell and the peripheral nerve belong anatomically?

    <p>Neuromuscular junction</p> Signup and view all the answers

    What is the specific function of the Pyramids in the brain stem?

    <p>Control muscle tone</p> Signup and view all the answers

    Which type of sensations are conducted to the CNS via somatic nerves?

    <p>Somatic sensations</p> Signup and view all the answers

    Which cranial nerve is responsible for muscle tone in the face?

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

    Which brain stem nuclei are involved in the regulation of muscle tone?

    <p>Red nucleus</p> Signup and view all the answers

    The corticospinal tracts originate from which area of the brain?

    <p>Cerebral cortex</p> Signup and view all the answers

    Which spinal cord level is involved in the pathway of pain and temperature sensations?

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

    What is the lateral branch of the posterior root ganglion's axon involved in?

    <p>Forming the afferent sensory nerve</p> Signup and view all the answers

    Which of the following best describes the pathway for fine touch sensations?

    <p>It follows the same pathway as deep (proprioceptive) sensations.</p> Signup and view all the answers

    Which spinal cord tract carries fibres from the lower half of the body and lies medially?

    <p>Gracile Tract</p> Signup and view all the answers

    Which of the following statements is true about the 3rd order neurone in the pathway of sensations?

    <p>It ascends through the posterior limb of the internal capsule.</p> Signup and view all the answers

    Which of the following best describes the pathway for deep (proprioceptive) sensations?

    <p>It follows the same pathway as fine touch.</p> Signup and view all the answers

    Which nuclei in the medulla are involved in the relay of deep (proprioceptive) sensations?

    <p>Gracile and Cuneate nuclei</p> Signup and view all the answers

    Which of the following best describes the pathway for simple touch sensations?

    <p>It ascends in the Ventral Spinothalamic tract of the opposite side of the spinal cord.</p> Signup and view all the answers

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