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medullary laminae of thalamus


Definition: layers of myelinated fibers that appear on transverse sections of the thalamus; the lamina medullaris lateralis [TA] (external medullary lamina [TA]) marks the ventral and lateral borders of the thalamus and delimits it from the subthalamus and the reticular nucleus of thalamus; the lamina medullaris medialis [TA] (internal medullary lamina [TA]) is interposed between the dorsomedial (mediodorsal) and ventral nuclei of the thalamus and encloses the intralaminar nuclei (centromedian, paracentral, and central lateral nuclei).

Synonym(s): laminae medullares thalami, medullary layers of thalamus

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.