Uv S Jk

Amygdala -1

Anterior commissure

Column of fornix

Hypothalamus

Mammillothalarnic tract

Centromedian thalamic nucleus

Posterior commissure

Tail of caudate nucleus

Anterior commissure

Column of fornix

Hypothalamus

Mammillothalarnic tract

Centromedian thalamic nucleus

Posterior commissure

Tail of caudate nucleus

Head of caudate nucleus

Anterior limb of internal capsule

Putamen

Globus pallidus, pars lateralis

Globus pallidus, pars medialis

Posterior limb of Internal capsule

Ventral posteromedial thalamic nucleus

Ventral posterolateral thalamic nucleus

Pulvinar

Calcar avis

Anterior limb of internal capsule

Body of fornix

Anterior thalamic nucleus

Mediodorsal thalamic nucleus

Ventral posteromedial thalamic nucleus

Lateral posterior thalamic nucleus

Medial thalamic nucleus

Ventral posterolateral thalamic nucleus

Pulvinar

Tapetum Inferior occipitofrontal fasciculus

Body of fornix

Anterior thalamic nucleus

Genu of internal Head of caudate capsule nucleus

Mediodorsal thalamic nucleus

Ventral posteromedial thalamic nucleus

Lateral posterior thalamic nucleus

Medial thalamic nucleus

Ventral posterolateral thalamic nucleus

Pulvinar

Tapetum Inferior occipitofrontal fasciculus

Anterior limb of internal capsule

- Claustrum

- External capsule

- Extreme capsule

Putamen

External medullary lamina

- Globus pallidus

Posterior limb of internal capsule

. Mammillothalamic tract

v Tail of caudate nucleus

Habenular nucleus

Interthalamic mass

Globus pallidus, pars lateralis

Mediodorsal thalamic nucleus

Posterior limb of internal capsule

Ventral lateral thalamic nucleus

Tapetum

Interthalamic mass

Globus pallidus, pars lateralis

Mediodorsal thalamic nucleus

Posterior limb of internal capsule

Ventral lateral thalamic nucleus

Tapetum

Head of caudate nucleus

Anterior limb of internal capsule

Claustrum

Putamen

Body of fornix

Anterior thalamic nucleus

Centromedian thalamic nucleus

Ventral posterolateral thalamic nucleus

Pulvinar Stria medullars

Head of caudate nucleus

Anterior limb of internal capsule

Claustrum

Putamen

Body of fornix

Anterior thalamic nucleus

Centromedian thalamic nucleus

Ventral posterolateral thalamic nucleus

Pulvinar Stria medullars

Head of caudate nucleus

Anterior limb of internal capsule

Genu of internal capsule

Putamen

Anterior thalamic nucleus

Posterior limb of internal capsule

Ventral lateral thalamic nucleus

Lateral posterior thalamic nucleus

Corona radiata

Tail of caudate nucleus

Crus of fornix

Corona radiata

Tail of caudate nucleus

Crus of fornix

Somatosensory System

Epicritic and deep sensitivity from trunk and limbs is carried by the posterior fasciculus-medial lemniscus pathway. The fibers travel within the spinal cord omolaterally to their origin, in the gracile and cuneatus fascicles, ending in the corresponding dorsal column nuclei, in the posterior aspect of the caudal end of the medulla oblongata. Thereafter, the medial lemniscus originates, and it immediately crosses the midline ascending to the ventral posterior nucleus of the thalamus. The protopathic pathways arise from the dorsal horn of the spinal gray matter. The fibers, which relay pain and temperature sensations, decussate within the cord at the level of their origin, and ascend in the anterolateral funiculus (spinothalamic tract) to the thalamus, traveling together with the medial lemniscus in the brain. Projections from the thalamus reach the somatic sensory area, mainly located in the postcentral (parietal ascending) gyrus. Sensory fibers and terminations are somatotopically organized.

Postcentral gyrus

Ventral posterolateral thalamic nucleus

Medial lemniscus

Arcuate fibers Gracile nucleus Gracile fasciculus

Burdach's cuneate nucleus

Soil's gracile nucleus

Burdach's cuneate nucleus

Soil's gracile nucleus

Medial lemniscus
Medial lemniscus

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