Spinal trigeminal nucleus
Encyclopedia
The spinal trigeminal nucleus is a nucleus
in the medulla
that receives information about deep/crude touch, pain, and temperature
from the ipsilateral face. The facial
, glossopharyngeal
, and vagus nerve
s also convey pain information from their areas to the spinal trigeminal nucleus.
This nucleus projects to the ventral posterior medial nucleus in the dorsal thalamus.
Nucleus (neuroanatomy)
In neuroanatomy, a nucleus is a brain structure consisting of a relatively compact cluster of neurons. It is one of the two most common forms of nerve cell organization, the other being layered structures such as the cerebral cortex or cerebellar cortex. In anatomical sections, a nucleus shows up...
in the medulla
Medulla oblongata
The medulla oblongata is the lower half of the brainstem. In discussions of neurology and similar contexts where no ambiguity will result, it is often referred to as simply the medulla...
that receives information about deep/crude touch, pain, and temperature
Temperature
Temperature is a physical property of matter that quantitatively expresses the common notions of hot and cold. Objects of low temperature are cold, while various degrees of higher temperatures are referred to as warm or hot...
from the ipsilateral face. The facial
Facial nerve
The facial nerve is the seventh of twelve paired cranial nerves. It emerges from the brainstem between the pons and the medulla, and controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue and oral cavity...
, glossopharyngeal
Glossopharyngeal nerve
The glossopharyngeal nerve is the ninth of twelve pairs of cranial nerves . It exits the brainstem out from the sides of the upper medulla, just rostral to the vagus nerve...
, and vagus nerve
Vagus nerve
The vagus nerve , also called pneumogastric nerve or cranial nerve X, is the tenth of twelve paired cranial nerves...
s also convey pain information from their areas to the spinal trigeminal nucleus.
This nucleus projects to the ventral posterior medial nucleus in the dorsal thalamus.