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Putamen

Brain: Putamen

Coronal section of brain through anterior commissure. (Putamen labeled at center right.)

Coronal section of brain through intermediate mass of third ventricle. (Putamen labeled at top.)
Gray's	subject #189 34
NeuroNames	hier-212
MeSH	Putamen
Dorlands/Elsevier	p_43/12681480

"Putamen" is also a botanical term for the stone in a fruit, such as a peach.

The putamen is a structure in the middle of the brain, which, together with the caudate nucleus forms the dorsal striatum.

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The putamen is a portion of the basal ganglia that forms the outermost part of the lenticular nucleus.

Function

It appears to play a role in reinforcement learning.

Projections

The motor and somatosensory cortices, the intralaminar nuclei of the thalamus, and the substantia nigra project to the putamen.

The putamen projects to premotor and supplementary motor areas of cortex via the globus pallidus and thalamus.

Additional images

v • d • e Brain: telencephalon (cerebrum, cerebral cortex, cerebral hemispheres)
Primary sulci/fissures	Medial longitudinal, Lateral, Central, Parietoöccipital, Calcarine, Cingulate, Callosal Collateral fissure
Frontal lobe	Precentral gyrus (Primary motor cortex, 4), Precentral sulcus, Superior frontal gyrus/Frontal eye fields (6, 8, 9), Middle frontal gyrus (46), Inferior frontal gyrus (44-Pars opercularis, 45-Pars triangularis), Orbitofrontal cortex (10, 11, 12, 47)
Parietal lobe	Somatosensory cortex (Primary (1, 2, 3, 43), Secondary (5)), Precuneus (7m), Parietal lobules (Arcuate fasciculus/Superior (7l), Inferior (40)), Angular gyrus (39), Intraparietal sulcus, Marginal sulcus
Occipital lobe	Primary visual cortex (17), Cuneus, Lingual gyrus, 18, 19 - Lateral occipital sulcus
Temporal lobe	Primary auditory cortex (41, 42), Superior temporal gyrus (38, 22), Middle temporal gyrus (21), Inferior temporal gyrus (20), Fusiform gyrus (37) Medial temporal lobe (Amygdala, Hippocampus, Parahippocampal gyrus (27, 28, 34, 35, 36)
Cingulate cortex/gyrus	Subgenual area (25), anterior cingulate (24, 32, 33), Posterior cingulate (23, 31), Retrosplenial cortex (26, 29, 30), Supracallosal gyrus
white matter tracts	Corpus callosum (Splenium, Genu, Rostrum, Tapetum), Septum pellucidum, Internal capsule, Corona radiata, External capsule, Olfactory tract, Fornix (Commissure of fornix), Anterior commissure, Posterior commissure Terminal stria Superior and Inferior longitudinal fasciculus, uncinate fasciculus, cingulum, Inferior occipitofrontal fasciculus
Basal ganglia	Striatum (Putamen,Caudate nucleus, Nucleus accumbens), Globus pallidus, Claustrum, Subthalamic nucleus, Substantia nigra
Other	Insular cortex Olfactory bulb, Anterior olfactory nucleus Septal nuclei Basal optic nucleus of Meynert
Some categorizations are approximations, and some Brodmann areas span gyri.

Category: Cerebrum

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Putamen". A list of authors is available in Wikipedia.