Neuroanatomy Quiz: Sensory Pathways and Language Impairment

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Questions and Answers

Which efferent cerebellar tract enters and exits via the inferior cerebellar peduncle?

  • Globose-emboliform rubral
  • Dentato-thalamic
  • Fastigio-vestibular (correct)
  • Vestibulocerebellar

At what level of the nervous system does the Dorsal Column Medial Lemniscal (DCML) fiber tracts decussate?

  • Spinal cord
  • Medulla (correct)
  • Midbrain
  • Pons

Which sensory modality is NOT carried by the DCML pathway?

  • Conscious proprioception
  • Temperature (correct)
  • Vibration
  • Tactile discrimination

Which tract is responsible for conveying discriminative tactile information from the upper extremity in the DCML pathway?

<p>Fasciculus cuneatus (B)</p> Signup and view all the answers

At which level of the nervous system does the Spinothalamic tract decussate?

<p>Spinal cord (B)</p> Signup and view all the answers

Which receptor is employed by the Lateral Spinothalamic tract to sense cold temperature?

<p>End-bulbs of Krause (C)</p> Signup and view all the answers

Where are the cell bodies of the first-order neurons in the Trigeminal pathway located?

<p>Trigeminal ganglion (B)</p> Signup and view all the answers

What type of sensory information does the right gracilis fasciculus carry?

<p>Position information from the right leg (A)</p> Signup and view all the answers

Which sensory modality is relayed by the Trigeminal pathway?

<p>Temperature (B)</p> Signup and view all the answers

Which thalamic relay center is correctly matched with the Spinothalamic pathway?

<p>VPM nucleus (C)</p> Signup and view all the answers

Which of the following is NOT a characteristic of the Trigeminal pathway?

<p>It decussates at the level of the spinal cord (B)</p> Signup and view all the answers

What is the term for an impairment of any language modality observed during a neurologic examination?

<p>Aphasia (C)</p> Signup and view all the answers

What would be the result of cutting the Spinothalamic tract on the right side of the spinal cord?

<p>Pain sensations below the damaged area on the left side are eliminated (A)</p> Signup and view all the answers

What type of sensory information is carried by the Trigeminal pathway?

<p>Pain and temperature from the face (B)</p> Signup and view all the answers

Which cranial nerves are evaluated when testing the six principal positions of gaze?

<p>III, IV, and VI (D)</p> Signup and view all the answers

Where do the second-order neurons in the Trigeminal pathway synapse?

<p>Spinal nucleus of CN V (D)</p> Signup and view all the answers

Where does the first decussation of the ascending auditory pathway occur?

<p>Brainstem (D)</p> Signup and view all the answers

Which area is the entry point of the Vestibular nerve (CN VIII) in the brain?

<p>Pontomedullary junction (C)</p> Signup and view all the answers

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