USMLE Step 1 Neuroanatomy Review 25 11 Cerebral Cortex

USMLE Step 1 Neuroanatomy Review 25 11 Cerebral Cortex

 

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  • USMLE Audio Review files from our “Gold Standard USMLE Reviews”
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  • Following along with the transcription
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Play USMLE Audio MP3 25 11 Cerebral Cortex Below

Begin 25 11 Cerebral Cortex Transcription

Now we’re going to discuss the cerebral cortex. Please refer to figure 3.1.

How many main lobes are contained in each cerebral hemisphere?

  • Each cerebral hemisphere contains four main lobes.

Student doctor, what are these four main lobes? Refer to figure 3.1.

  • The frontal lobe, the temporal lobe, the parietal lobe, and the occipital lobe.

What system is included by some neuroanatomists as a fifth lobe?

  • The limbic system.

What is the general term for the type of structure that separates lobes, such as the frontal lobe separated from the parietal lobe?

  • This would be a fissure.

What is the name of the fissure which separates the frontal lobe from the parietal lobe?

  • This is called the central sulcus, the older name for it, the fissure of Rolando.

What fissure separates the temporal lobe from the frontal lobe?

  • This is the lateral sulcus, the older name for this, the fissure of Sylvius.

Student doctor, what fissure separates the occipital lobe from the parietal lobe?

  • This is an imaginary line running down the parietooccipital sulcus.

****END OF TRANSCRIPTION****

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