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The thalamus is located deep within the brain in the cerebral cortex, adjacent to the hypothalamus. It is a symmetrical structure, perched on top of the brain stem and either side of the third cortex. The two halves are bulb-shaped and are about 5.7 centimeters in length. Its chief function is processing information going to and from the spinal cord and cerebrum. It also controls sleep, consciousness, and alertness. A vital part of the sensory system, the thalamus receives information from every sensory system, apart from the olfactory system, which it then sends to the relevant cortical area. Recent research has revealed that the thalamus doesn
Written and medically reviewed by the Healthline Editorial Team
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In Depth: Thalmus

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