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Trigeminal lemniscus
Details
Identifiers
Latin
lemniscus trigeminalis
NeuroNames
1572
TA98
A14.1.05.310 A14.1.08.680 A14.1.06.208
TA2
5862
FMA
84040
Anatomical terms of neuroanatomy
[edit on Wikidata]
The trigeminal lemniscus, also called the trigeminothalamic tract, is composed of the ventral trigeminal tract, and the dorsal trigeminal tract – nerve tracts that convey tactile, pain, and temperature impulses from the skin of the face, the mucous membranes of the nasal and oral cavities, and the eye, as well as proprioceptive information from the facial and masticatory muscles.
The trigeminal lemniscus is composed of second order neuronal axons in the brainstem. It carries sensory information from the trigeminal system to the ventral posteromedial (VPM) nucleus of the thalamus.
This tract was historically considered a cephalic division of the medial lemniscus due to the close proximity of the two ascending tracts.[1] Like the medial lemniscus in the dorsal column-medial lemniscus pathway (DCML), that carries mechanosensory information from part of the head and the rest of the body, the trigeminal lemniscus carries mechanosensory information from the face.[2] However, the trigeminal lemniscus also carries pain and temperature sensations from the contralateral orofacial region, just as the spinothalamic tract carries these sensations from the contralateral body. Thus, the trigeminal lemniscus of the head is functionally analogous to both the DCML tracts and the spinothalamic tract of the body.
^Anthoney, TR (1993). Neuroanatomy and the neurologic exam: a thesaurus of synonyms, similar-sounding non-synonyms, and terms of variable meaning. CRC Press.
^Purves, Dale (2012). Neuroscience (5th ed.). Sinauer Associates. pp. 199–201. ISBN 9780878936953.
and 26 Related for: Trigeminal lemniscus information
The trigeminallemniscus, also called the trigeminothalamic tract, is composed of the ventral trigeminal tract, and the dorsal trigeminal tract – nerve...
body is carried to the thalamus by the medial lemniscus, and from the face by the trigeminallemniscus (both the anterior and posterior trigeminothalamic...
in the medial lemniscus have cell bodies that lie contralaterally. The medial lemniscus is part of the dorsal column–medial lemniscus pathway, which...
trigeminal tract is also called the anterior trigeminal lemniscus. The first order neurons (from the trigeminal ganglion) enter the pons and synapse in the principal...
trigeminothalamic tract is also called the posterior trigeminallemniscus. The first-order neurons (from the trigeminal ganglion) enter the pons and synapse on second-order...
these nuclei are the second-order neurons of the posterior column-medial lemniscus pathway, and their axons, called the internal arcuate fibers or fasciculi...
from the tail. Scheme showing the course of the fibers of the lemniscus; medial lemniscus in blue, lateral in red. The sensory tract. Fourth ventricle...
ventro-medial from the spinal tract of the trigeminal; the fibers come to lie in the medial portion of the lateral lemniscus. Tectospinal tract This article incorporates...
arteries) leads to death of the ipsilateral medullary pyramid, the medial lemniscus, and the hypoglossal nerve fibers that pass through the medulla. The spinothalamic...
include the corticospinal tract (motor function), the dorsal column-medial lemniscus pathway (fine touch, vibration sensation, and proprioception), and the...
medial lemniscus, and spinothalamic tracts. Ventral posteromedial nucleus, which receives sensory information from the head and face via the trigeminal nerve...
through peripheral sensory neurons in the cranial nerves, such as the trigeminal nerve. The neural pathways that go to the brain are structured such that...
fibers in the contralateral lateral lemniscus. The lateral lemniscus contains cells of the nuclei of the lateral lemniscus, and in turn projects to the inferior...
coordination) is a prominent symptom early in the disease course. The trigeminal nerve ganglion is also commonly affected leading to facial numbness. Motor...
called the medial lemniscus. The internal arcuate fibers are part of the second-order neurons of the posterior column-medial lemniscus system, and are important...
Conscious proprioception is communicated by the dorsal column-medial lemniscus pathway to the cerebrum. Nonconscious proprioception is communicated primarily...
extremities. Classically, syringomyelia spares the dorsal column/medial lemniscus of the spinal cord, leaving pressure, vibration, touch and proprioception...
3’’, its external part (reticularis grisea). 4. Raphé. 5. Pyramid. 6. Lemniscus. 7. Inferior olivary nucleus with the two accessory olivary nuclei. 8...
part of the VB. The VB gets inputs from the spinothalamic tract, medial lemniscus, and corticothalamic tract. The main output of the VB is the primary somatosensory...
of neurons through tracts in the spinal cord. The dorsal column–medial lemniscus pathway contains information about fine touch, vibration and position...
Deiters’s nucleus are supposed to cross and ascend in the opposite medial lemniscus to the ventro-lateral nuclei of the thalamus; still other fibers pass...
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