Development of Spinal Cord
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Questions and Answers

Which spinal tract controls pressure, vibration, fine touch, and proprioception?

  • Corticospinal tract
  • Posterior (dorsal) column (correct)
  • Spinocerebellar tract
  • Spinothalamic tract
  • Where do the gracile and cuneate nuclei, involved in sensory processing, reside?

  • Pons
  • Cerebellum
  • Medulla (correct)
  • Midbrain
  • What is the term used for the ascending pathway that involves both contralateral and ipsilateral control?

  • Corticospinal tract
  • Ascending contralaterally (correct)
  • Spinothalamic tract
  • Descending pathway
  • Which spinal cord horn is responsible for sensory functions?

    <p>Posterior/dorsal horn</p> Signup and view all the answers

    Where does the spinal cord end in adults?

    <p>Lower border of L1-L2 vertebrae</p> Signup and view all the answers

    Which spinal pathway controls pain and temperature?

    <p>Spinothalamic tract</p> Signup and view all the answers

    Where do sensory neurons form from in the neural plate?

    <p>Alar plate</p> Signup and view all the answers

    Which region of the spinal cord forms the thoracolumbar sympathetic output in adults?

    <p>Intermediate horn</p> Signup and view all the answers

    Where are cranial nerve nuclei primarily located?

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

    Which part of the neural tube defects is best visualized through MRI?

    <p>Spina bifida occulta</p> Signup and view all the answers

    Which structure is between the dorsal alar plate and basal plate?

    <p>Sulcus limitans</p> Signup and view all the answers

    What controls the skeletal muscles of branchial arch origin?

    <p>Special visceral afferents</p> Signup and view all the answers

    Which condition is characterized by the bulging out of both meninges and spinal cord from the back of the baby's spine?

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

    What condition is associated with Chiari malformations and typically leads to permanent neuro deficits like leg weakness or paralysis?

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

    Which type of reflexes respond to stimuli on the superficial skin, including the Babinski and cremasteric reflexes?

    <p>Superficial reflexes</p> Signup and view all the answers

    Which condition is characterized by an open entire spinal cord and can be detected in utero through prenatal screening?

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

    What condition results in the failure of the head of the neural tube to close, leading to forebrain/brainstem exposure in utero?

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

    Which form of neural tube defect is characterized by brain or meninges herniating through a skull defect?

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

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