Ventral posteromedial nucleus
Ventral Posteromedial Nucleus
The Ventral Posteromedial Nucleus (VPM) is a component of the thalamus, which is a large mass of gray matter located in the dorsal part of the diencephalon. The VPM is a relay nucleus in the somatosensory system and plays a significant role in processing sensory information from the face and mouth.
Structure[edit | edit source]
The Ventral Posteromedial Nucleus is located in the ventral part of the thalamus, adjacent to the ventral posterolateral nucleus (VPL). It is one of the several nuclei that make up the thalamus, and it is primarily involved in the transmission of sensory information.
Function[edit | edit source]
The VPM receives sensory information from the trigeminal nerve and the gustatory system, which are responsible for sensations in the face and taste, respectively. This information is then relayed to the primary somatosensory cortex, where it is processed and interpreted.
Clinical Significance[edit | edit source]
Damage to the Ventral Posteromedial Nucleus can result in a loss of sensation in the face and mouth, as well as taste disturbances. It can also lead to thalamic pain syndrome, a condition characterized by severe, chronic pain.
See Also[edit | edit source]
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Contributors: Prab R. Tumpati, MD
