What does the Trigeminothalamic tract carry?
The trigeminal lemniscus is a part of the brain that conveys 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.
Where does the Trigeminothalamic tract Decussate?
Axons of the second-order neurons then decussate to enter the trigeminal lemniscus in the midbrain and then ascend to the ventral posteromedial nucleus of the contralateral thalamus, forming the ventral trigeminothalamic tract.
Is the Trigeminothalamic tract ipsilateral?
The intracerebral trigeminal pathways can be subdivided into three pathways: a ventral (contralateral) and dorsal (mainly ipsilateral) trigeminothalamic tract and the intranuclear pathway.
Where does the Trigeminothalamic tract cross?
General tactile sensation The second-order neurons in the trigeminothalamic pathway are located in the chief sensory nucleus of the trigeminal nerve, in the pons. This gives rise to fibres that cross the midline and ascend to the thalamus in the trigeminal lemniscus.
Where is Trigeminothalamic?
Trigeminothalamic tracts refer to brainstem pathways from the spinal nucleus of V (trigeminal nerve) and the principal (chief) nucleus of V to the ventral posterior medial nucleus of the thalamus.
What is the trigeminal nerve connected to?
| Trigeminal nerve | |
|---|---|
| To | Ophthalmic nerve Maxillary nerve Mandibular nerve |
| Innervates | Motor: Muscles of mastication, tensor tympani, tensor veli palatini, mylohyoid, anterior belly of the digastric Sensory: Face, mouth, temporomandibular joint |
| Identifiers | |
| Latin | Nervus trigeminus |
What are the functions of the Trigeminothalamic tracts?
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 …