BRS

Chapter 13 Diencephalon: Thalamus and Hypothalamus

189

Internal medullary lamina

Ant. nuclear group

Mediodorsal nucleus

MD

VA

LD

VL

LP

VPL

VPM

A

Ventral tier nuclei

Medial geniculate body

Lat. geniculate body

Cingulate gyrus

Mammillothalamic tract Fornix

Prefrontal cortex

Amygdaloid complex Temporal neocortex Substantia nigra Sup. parietal lobe

Globus pallidus Substantia nigra

Area 6 Diffuse frontal cortex

Areas 18 and 19 Inf. parietal lobule

Dentate nucleus Globus pallidus Substantia nigra

Inf. colliculus Lat. lemniscus

Area 4

Areas 41 and 42

Optic tract

Medial lemniscus Spinothalamic tracts

Area 17 Trigeminothalamic tracts and taste pathways

Areas 3, 1, and 2

B

Motor cortex (area 4)

Internal medullary lamina

LD

VL

Reticular nucleus

MD

VPL

Third ventricle

Striatum

CM

VPM

Zona incerta

Subthalamic nucleus

C

Copyright © 2023 Wolters Kluwer, Inc. Unauthorized reproduction of the content is prohibited. FIGURE 13.1. Major thalamic nuclei and their connections. (A) Oblique dorsolateral aspect of the thalamus and major nuclei. (B) The major afferent and efferent connections of the thalamus. (C) The transverse section of the thalamus showing the major connections of the centromedian nucleus. CM, centromedian nucleus; MD, mediodorsal nucleus; LD, lateral dorsal nucleus; LP, lateral posterior nucleus; VA, ventral anterior nucleus; VL, ventral lateral nucleus; VPL, ventral posterolateral nucleus; VPM, ventral posteromedial nucleus.