The gray matter of the two halves of the thalamus is divided by a vertical sheet of white matter called the__________.

1 answer:

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The gray matter of the two halves of the thalamus is divided by a vertical sheet of white matter called the internal medullary thalamus.

On cross sections of the thalamus, layers of myelinated fibres are seen as medullary laminae. They are also known as medullary layers of the thalamus or laminae medullares thalami. The thalamus is divided into lateral, medial, and anterior regions by the internal medullary lamina, a thin, vertical strip of white matter that bifurcates in its anterior portion.

The intralaminar nuclei are enclosed by the laminae medullaris medialis (interior medullary lamina), which is located between the dorsomedial and ventral nuclei of the thalamus (centromedian nucleus, paracentral, and central lateral).

Therefore, gray matter of the two halves of the thalamus is divided by a vertical sheet of white matter called the internal medullary thalamus.

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