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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 ofVentral posterior nucleus
Identifiers
Latinnucleus ventralis posterolateralis
NeuroNames344
NeuroLex IDbirnlex_737
TA98A14.1.08.641
A14.1.08.656
TA25692
FMA62200
Anatomical terms of neuroanatomy

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 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 staining for calcium-binding proteins, 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
    Thalamus
  • The sensory tract.
    The sensory tract.

References

  1. ^ 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.
  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


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