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CN 5 trigeminal path

trigeminal sensory pathways

QuestionAnswer
trigeminal nerve is the general sensory nerve for the head. what is it responsible for?' touch, proprioception, pain/temperature
list the trigeminal nuclei involved in CN 5 chief sensory nucleus of 5, spinal trigeminal nucleus, mesencephalic nucleus of 5
what is the GSE of CN 5 responsible for? sensation of touch, pain, temperature, joint position, and vibration for the face, mouth, anterior two thirds of tongue, nasal sinuses, and meninges
what is hte branchial motor for CN 5 responsible for? muscles of mastication and tensor tympani muscle.
general somatic sensory innervation to the face is provided by which cranial nerves and what nuclei do they travel on? 5,7,9,10 and they travel on the trigeminal nuclei
the trigeminal sensory nuclear complex is made of which nuclei? main sensory nucleus, spinal nucleus of 5, mesencephalic trigeminal nucleus
what is the sensory modality for the mesencephalic trigeminal nucleus proprioception
what is the sensory modality fo rthe chief trigeminal sensory nucleus, its pathway to the thalamus, and the main thalamic nucleus? fine touch and dental pressure, trigeminal lemniscus, VPM
what is the sensory modality for the spinal trigeminal nucleus, its pathway to the thalamus, and the main thalamic nucleus? crude touch, pain, temperature, trigeminothalamic tract, VPM
what is the sensory modality fo rthe posterior column nuclei, its sensory modality, the pathway to the thalamus, and the main thalamic nucleus? fine touch, proprioception, medial lemniscus, VPL
what is the sensory modality for the dorsal horn, its main pathway to the thalamus, and the main thalamic nucleus? crude touch; pain, temperature, spinothalamic tract, VPL
what is the mesencephalic nucleus of 5 responsible for? proprioception from muscles of mastication, tongue, and extraocular muscles, proprioception from the periodontal ligament, and its also responsible for the jaw opening reflex.
what is the main sensory nucleus of 5 responsible for discriminative touch and conscious proprioception
what is the pathway of the trigeminal lemniscal pathway? main sensory nucleus travels on trigeminal lemniscus, along with nucleus gracillis and nucleus cuneatus , then on the medial lemniscus pathway to the thalamus
where are the first neurons in the trigeminal main sensory pathway located? psudounipolar cell bodies in the cranial ganglia of the trigeminal, facial, glossopharyngeal and vagus nerves
where are the second neurons in the trigeminal main sensory pathway located? main sensory trigeminal afferent axons
where do the neurons of the trigeminal main sensory pathway decussate? immediately upon leaving, and join the contralateral ventral trigeminal lemniscus
the spinal nucleus of five is responsible for what pain and temperature. it is a long upward extension of the dorsal horn of the spinal cord. it contains a set of neurons resembling the substantia gelatinosa in the spinal cord.
how does the trigeminothalamic pathway work? trigeminal pain and temperature fibers descend caudally to enter the spinal nucleus of five. fibers then decussate and join the ascending spinothalamic tract as the trigeminothalamic pathway
in this condition patient presents with painful, sharp electric like spasms that last a few seconds or minutes but can become constant. pain is usually on one side of the face, and may be triggered by touch or sounds. trigeminal neuralgia
trigeminal neuralgia is most common in what age groups over the age of fifty. it occurs in families, and may be a result of an inherited defect in blood vessel formation. risk factors include MS and hypertension
is trigeminal neuralgia more common in women or men women.
what is the likely cause of trigeminal neuralgia believed to be the result of presusre on the trigeminal nerve from a swollen blod vessel or tumor causing segmental demyelination. in many cases the cause is unkonwn
what is believed to be the cause of severe pain in trigeminal neuralgia? defective descending inhibitory pain pathways
Created by: aferdo01
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