Ventral posterolateral nucleus

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 thalami
NeuroNames	344
NeuroLex ID	birnlex_737
TA98	A14.1.08.641; A14.1.08.656
TA2	5692
FMA	62200
	Anatomical terms of neuroanatomy

The ventral posterolateral nucleus (VPL) is a nucleus of ventral posterior nucleus of the thalamus.[1] It relays sensory information from the second-order neurons of the neospinothalamic tract and medial lemniscus (of the posterior column-medial lemniscus pathway) which synapse with in the third-order neurons in the nucleus. These then project to the somatosensory cortex in the postcentral gyrus.

There is uncertainty regarding the location of VMpo, 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]

Anatomy

Subdivisions

The nucleus ventralis posterior lateralis pars oralis (VPLo) is a subdivision of the ventral posterolateral thalamus which has substantial projections to the motor cortex.[2]

Additional images

Thalamus
The sensory tract.

References

Willis et al The Journal of Pain 2002;3:79-94; Graziano and Jones, The Journal of Neuroscience 2004;24:248–256
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.

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[:0-1] Willis et al The Journal of Pain 2002;3:79-94; Graziano and Jones, The Journal of Neuroscience 2004;24:248–256

[2] 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.