Ventral posteromedial nucleus

The ventral posteromedial nucleus (VPM) is a nucleus of the thalamus.

Ventral posteromedial nucleus
Thalamic nuclei
Details
Identifiers
Latinnucleus ventralis posteromedialis thalami
NeuroNames347
NeuroLex IDbirnlex_743
TAA14.1.08.642
FMA62202
Anatomical terms of neuroanatomy

Inputs and outputs

The VPM contains synapses between second and third order neurons from the anterior (ventral) trigeminothalamic tract and posterior (dorsal) trigeminothalamic tract. These neurons convey sensory information from the face and oral cavity. Third order neurons in the trigeminothalamic systems project to the postcentral gyrus.

The VPM also receives taste afferent information from the solitary tract and projects to the cortical gustatory area.

Subareas

VPMpc

The parvicellular part of the ventroposterior medial nucleus (VPMpc) is argued by some as not an actually part of the VPM, because it does not project to the somatosensory cortex as the remainder of the VPM does, and therefore should be called the ventromedial nucleus (VMb) instead. [1]

Sources

  • Kiernan, J., & Rajakumar, R. (2013). Barr's the human nervous system: an anatomical viewpoint. Lippincott Williams & Wilkins.

References

  1. Craig, A.D. (2002). "How do you feel? Interoception: the sense of the physiological condition of the body". Nature Reviews Neuroscience. 3 (8): 655–666. doi:10.1038/nrn894. PMID 12154366.

Additional images


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