USMLE Step 1 Neuroanatomy Review 27 05 Lesions of the Medulla

USMLE Step 1 Neuroanatomy Review 27 05 Lesions of the Medulla

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  • USMLE Audio Review files from our “Gold Standard USMLE Reviews”
  • Transcriptions of those files
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Let’s start our USMLE Review with Anatomy from the Gold Standard USMLE Step 1 Audio Review program.

Play USMLE Audio MP3 27 05 Lesions of the Medulla Below

Begin 27 05 Lesions of the Medulla Transcription

Now we’re going to take a look at lesions of the medulla.

Student doctor, what syndrome results from the occlusion of the anterior spinal artery? 

  • The medial medullary syndrome.

What are the three symptoms or groups of symptoms of the medial medullary syndrome? 

  • And we’ll take these in order from cephalic to caudal.
  • First, ipsilateral flaccid paralysis of the tongue.
  • Second, contralateral loss of proprioception, tactile discrimination, and vibration sensation from the trunk and extremities.  And
  • third, contralateral hemiparesis of the trunk and extremities.

Now let’s turn these around.  What syndrome is indicated by the following symptoms:  Ipsilateral flaccid paralysis of the tongue, contralateral loss of proprioception, tactile discrimination, and vibration sensation from the trunk and extremities, and contralateral hemiparesis of the trunk and extremities? 

  • These are the symptoms of the medial medullary syndrome.

 ****END OF TRANSCRIPTION****

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