=====Thalamus=====
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The thalamus (from Greek θάλαμος, "chamber") is a midline symmetrical structure of two halves, within the vertebrate brain, situated between the cerebral [[cortex]] and the [[midbrain]]. 

The thalamus has a unique configuration within the [[basal ganglia]]. Its tetrahedric shape has 3 free surfaces and only the ventrolateral border is in contact with vital and critical functional structures, e.g. the [[subthalamic nucleus]] and the [[internal capsule]].

[[Thalamocortical radiation]]s have been referred to as one of the two constituents of the thalamus, the other being micro [[neuron]]s. 

see [[Anterior thalamic nucleus]].


====Functions=====
Some of its functions are the relaying of sensory and motor signals to the cerebral cortex, and the regulation of consciousness, sleep, and alertness. The thalamus surrounds the [[third ventricle]]. It is the main product of the embryonic [[diencephalon]].

===== Pathology =====

see [[Thalamic lesion]].