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The other two sensory nuclei are the chief sensory nucleus mediating conscious facial touch and the spinal trigeminal nucleus, mediating pain and temperature in the head, and is of importance in headache. The trigeminal motor nucleus innervates the muscles of mastication, mylohyoid, anterior belly of digastric, tensor veli palatini, and tensor ...
The spinal trigeminal nucleus is further subdivided into three parts, from rostral to caudal: Pars oralis (from the Pons to the Hypoglossal nucleus) Pars interpolaris (from the Hypoglossal nucleus to the obex) Pars caudalis (from the obex to C2) There is also a distinct trigeminal motor nucleus that is medial to the principal sensory nucleus.
The principal sensory nucleus of trigeminal nerve (or chief sensory nucleus of V, main trigeminal sensory nucleus) is a group of second-order neurons which have cell bodies in the caudal pons. It receives information about discriminative sensation and light touch of the face as well as conscious proprioception of the jaw via first order neurons ...
The trigeminal motor nucleus contains motor neurons that innervate muscles of the first branchial arch, namely the muscles of mastication, the tensor tympani, tensor veli palatini, mylohyoid, and anterior belly of the digastric. [1] It is situated in the upper pons, inferior to the lateral part of the floor of the fourth ventricle. [2]
The spinal trigeminal nucleus is a nucleus in the medulla that receives information about deep/crude touch, pain, and temperature from the ipsilateral face. In addition to the trigeminal nerve (CN V), the facial (CN VII), glossopharyngeal (CN IX), and vagus nerves (CN X) also convey pain information from their areas to the spinal trigeminal nucleus. [1]
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A cranial nerve nucleus is a collection of neurons (gray matter) in the brain stem that is associated with one or more of the cranial nerves. Axons carrying information to and from the cranial nerves form a synapse first at these nuclei .
“An individual on a mission may at the end have questions about the morality of what went on, and most guys reconcile that fairly rapidly,” said Thomas S. Jones, a retired combat-decorated Marine major general. He is fiercely fond of young Marines and runs a retreat for the wounded, Semper Fi Odyssey, where he sees many cases of moral ...