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IV. Thalamocortical Projection of the Ventral Anterior Nucleus in Man

JAY B. ANGEVINE, JR., Ph.D.; SIMEON LOCKE, M.D.; PAUL I. YAKOVLEV, M.D.

Arch Neurol. 1962;7(6):518-528.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Introduction

Nucleus ventralis anterior (VA) is the most anterior member in the external segment of the human thalamus and probably represents a rostral extension of nucleus ventralis lateralis (VL), from which it is not sharply delimited.¹³ The characteristic reticulated appearance of VA in transverse sections stained for myelin results from the coarse medullated fiber bundles which pass through it. Many of these fibers represent the most rostral projections of the thalamic radiation and therefore are components of the anterior limb of the internal capsule. Some fibers, however, myelinate before the internal capsule.¹¹ The nucleus may be subdivided into a pars magnocellularis and a pars principalis on the basis of cell size. The pars magnocellularis is dorsomedial in position and in man is separated from the nucleus anterior ventralis (AV), nucleus submedius (SM), and nucleus medialis ventralis (MV) by the fibers of the mammillothalamic tract, although some of the cells . . . [Full Text PDF of this Article]

Author Affiliations
BOSTON

From Departments of Anatomy and Neurology and the Warren Anatomical Museum, Harvard Medical School, and the Neurological Unit, Boston City Hospital.

Footnotes
Submitted for publication July 6, 1962.

This investigation was supported by a U.S. Public Health Service research grant (B-152) from the National Institute of Neurological Diseases and Blindness, Public Health Service.

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