The ventral posterolateral nucleus (VPL) is one of the subdivisions of the ventral posterior nucleus in the ventral nuclear group of the thalamus.[1] It relays sensory information from the second-order neurons of the neospinothalamic tract and medial lemniscus (of the dorsal column-medial lemniscus pathway) which synapse with the third-order neurons in the nucleus. These then project to the somatosensory cortex in the postcentral gyrus.[citation needed]
| Ventral posterolateral nucleus | |
|---|---|
 Thalamic nuclei: MNG = Midline nuclear group AN = Anterior nuclear group MD = Medial dorsal nucleus VNG = Ventral nuclear group VA = Ventral anterior nucleus VL = Ventral lateral nucleus VPL = Ventral posterolateral nucleus VPM = Ventral posteromedial nucleus LNG = Lateral nuclear group PUL = Pulvinar MTh = Metathalamus LG = Lateral geniculate nucleus MG = Medial geniculate nucleus | |
 Thalamic nuclei | |
| Details | |
| Part of | Ventral posterior nucleus |
| Identifiers | |
| Latin | nucleus ventralis posterolateralis |
| NeuroNames | 344 |
| NeuroLex ID | birnlex_737 |
| TA98 | A14.1.08.641 A14.1.08.656 |
| TA2 | 5692 |
| FMA | 62200 |
| Anatomical terms of neuroanatomy | |
There is uncertainty regarding the location of VMpo (posterior part of ventral medial nucleus), as determined by spinothalamic tract (STT) terminations and staining for calcium-binding proteins, and several authorities do not consider its existence as being proved.[1][2]
Anatomy
editSubdivisions
editThe oral part of the ventral posterolateral nucleus (nucleus ventrointermedius) in the human, (VPLO)[3] is a subdivision of the VPL with projections to the motor cortex.[4]
There is also a caudal part of the ventral posterolateral nucleus (VPLC).[5]
Additional images
edit-
Thalamus -
The sensory tract.
References
edit- ^ a b Willis WD, Jr; Zhang, X; Honda, CN; Giesler GJ, Jr (April 2002). "A critical review of the role of the proposed VMpo nucleus in pain". The Journal of Pain. 3 (2): 79–94. doi:10.1054/jpai.2002.122949. PMID 14622792.
- ^ Graziano, A; Jones, EG (7 January 2004). "Widespread thalamic terminations of fibers arising in the superficial medullary dorsal horn of monkeys and their relation to calbindin immunoreactivity". The Journal of Neuroscience. 24 (1): 248–56. doi:10.1523/JNEUROSCI.4122-03.2004. PMC 6729588. PMID 14715957.
- ^ BrainInfo NeuroName 345
- ^ Bornschlegl, M; Asanuma, H (1987-12-22). "Importance of the projection from the sensory to the motor cortex for recovery of motor function following partial thalamic lesion in the monkey". Brain Research. 437 (1): 121–30. doi:10.1016/0006-8993(87)91533-2. PMID 2827861. S2CID 22353965.
- ^ BrainInfo NeuroName 346
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