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The spinothalamic tract is a nerve tract in the anterolateral system in the spinal cord. [1] This tract is an ascending sensory pathway to the thalamus.From the ventral posterolateral nucleus in the thalamus, sensory information is relayed upward to the somatosensory cortex of the postcentral gyrus.
Ventral posteromedial nucleus, which receives sensory information from the head and face via the trigeminal nerve. Ventral intermediate nucleus, implicated in oscillatory tremor generation in Parkinson's disease and essential tremor. [2] [3]
Nerve fibers project out of the thalamus to the cerebral cortex in all directions, known as the thalamocortical radiations, allowing hub-like exchanges of information. It has several functions, such as the relaying of sensory and motor signals to the cerebral cortex [ 1 ] [ 2 ] and the regulation of consciousness , sleep , and alertness .
The ventral posteromedial nucleus (VPM) is a nucleus within the ventral posterior nucleus of the thalamus and serves an analogous somatosensory relay role for the ascending trigeminothalamic tracts as its lateral neighbour the ventral posterolateral nucleus serves for dorsal column–medial lemniscus pathway 2nd-order neurons.
The first evidence of this was an observation that damage to this area caused insomnia in human patients. [10] Current experiments using c-Fos expression as a marker for activation of neurons during sleep shows a dichotomy of function in sleep promotion and maintenance between the ventrolateral preoptic nucleus and the median preoptic nucleus.
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The gatekeepers of Elvis Presley's estate are trying to recover a potential trove of records and memorabilia left behind by the King of Rock and Roll, according to a lawsuit filed in California ...