Ventral posterolateral nucleus

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 [ edit on Wikidata]

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 second-order neurons of the neospinothalamic tract and the medial lemniscus (of the dorsal column-medial lemniscus pathway), which synapse with third-order neurons in the nucleus. These then project to the primary somatosensory cortex in the postcentral gyrus. ^{[2] [ citation needed ]}

There is uncertainty regarding the location of VMpo (posterior part of ventral medial nucleus), as determined by spinothalamic tract (STT) terminations and calcium-binding protein staining, and several authorities do not consider its existence as being proved. ^{[1] [3]}

The term "ventral posterolateral nucleus" was introduced by Le Gros Clark in 1930. ^{[4] [5]}

Anatomy

Subdivisions

The oral part of the ventral posterolateral nucleus (nucleus ventrointermedius) in the human, (VPLO) ^[6] is a subdivision of the VPL with projections to the motor cortex. ^[7]

There is also a caudal part of the ventral posterolateral nucleus (VPLC). ^[8]

Additional images

• 
  Thalamus
• 
  The sensory tract.

References

1. 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.
2. Brodal, Per (2004). The Central Nervous System: Structure and Function. New York: Oxford University Press. p. 444. ISBN   978-0-19-516560-9.
3. 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.
4. Jones, Edward G (1985). The Thalamus. New York: Springer. p. 327. doi:10.1007/978-1-4615-1749-8. ISBN   978-1-4613-5704-9. S2CID   41337319.
5. Le Gros Clark, W. E. (1930). "The Thalamus of Tarsius". Journal of Anatomy. 64 (4): 371–414. PMC   1250146 . PMID   17104288.
6. BrainInfo NeuroName 345
7. 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.
8. BrainInfo NeuroName 346