Dorsal trigeminal tract
Encyclopedia
The dorsal trigeminal tract (dorsal trigeminothalamic tract, or lemniscus) is a tract which receives signals from Meissner's corpuscle
s and Pacinian corpuscle
s.
It mediates pressure and tactile discrimination sensation. This tract arises from Principal trigeminal nucleus and terminates in the ipsilateral VPM
nucleus of the thalamus
.
Meissner's corpuscle
Meissner's corpuscles are a type of mechanoreceptor. They are a type of nerve ending in the skin that is responsible for sensitivity to light touch. In particular, they have highest sensitivity when sensing vibrations lower than 50 Hertz...
s and Pacinian corpuscle
Pacinian corpuscle
Lamellar corpuscles or Pacinian corpuscles are one of the four major types of mechanoreceptor. They are nerve endings in the skin, responsible for sensitivity to vibration and pressure. Vibrational role may be used to detect surface, e.g., rough vs...
s.
It mediates pressure and tactile discrimination sensation. This tract arises from Principal trigeminal nucleus and terminates in the ipsilateral VPM
Ventral posteromedial nucleus
-Inputs and outputs:It conveys information of the trigeminothalamic tract, from the solitary tract and the trigeminal nerve and projects to the postcentral gyrus....
nucleus of the thalamus
Thalamus
The thalamus is a midline paired symmetrical structure within the brains of vertebrates, including humans. It is situated between the cerebral cortex and midbrain, both in terms of location and neurological connections...
.
External links
- http://cancerweb.ncl.ac.uk/cgi-bin/omd?trigeminothalamic+tract
- http://isc.temple.edu/neuroanatomy/lab/atlas/hpv/
- NIF Search - Dorsal Trigeminal Tract via the Neuroscience Information FrameworkNeuroscience Information FrameworkThe Neuroscience Information Framework is a repository of global neuroscience web resources, including experimental, clinical, and translational neuroscience databases, knowledge bases, atlases, and genetic/genomic resources.-Description:...