Exam II Nuclei and Ganglion (3), 5, 7, 9, 10, 12 Flashcards
What are the three general sensory nuclei of the trigeminal nerve? What is the motor nucleus called and where is it located on the brain stem?
Mesencephalic, Pontine Trigeminal, Nucleus of spinal tract V. Trigeminal motor nucleus, located at the pons of the brain stem
What general senory modality does the mesencephalic nucleus handle?
Muscle proprioception
Which general sensory nucleus of V processes touch sensation? Which one processes pain and temperature?
Pontine Trigeminal.Nucleus of Spinal Tract V
What is the motor nucleus of CN V called and where is it located on the brain stem? Which division of CN V contains motor fibers?
Trigeminal motor nucleus.Only the V3 division of CN V carries branchial motor fibers
What muscles does the branchial motor V3 innervate?
Musles of mastication (MTML).Tensor tympani, tensor veli palatini, mylohyoid, anterior belly of the digastric.IOW: 4 muscles of Mastication and 4 other muscles
What four nuclei handle CN VII innervation?
Motor nucleus of VII (pons)Superior Salivatory NucleusNucleus of Spinal Tract of VNuclues Solitarus
The Nucleus of Spinal Tract of V, handles general sensory innervation for what three cranial nerves, besides V? Does it handle all the general sensory modalities of these three CNs? What general sensory modality does it handle in CN V?
VII, IX, X.Yes, it handles all the general sensory modalities for CN VII, IX, X. However, for CN V itself, it only handles the pain and temperature modality.
T/F CN IX and X share nuclei for all three sensory fiber types and motor innervation (except parasympathetic).
True
What nucleus handles the special sensory and visceral sensory innervation CN IX, X? Is the special sensory of VII also handled by this nucleus?
Nucleus Solitarius (pons).Yes, VII special sensory (taste) is also handled by Nucleus solitarius
What special sensation is innervated by CN VII, IX, X? What nucleus is it handled by for all three CNs?
Taste.Nucleus Solitarius
Which nucleus handles the branchial motor innervation CN IX and X?
Nucleus Ambiguus
What are the four parasympathetic nuclei for CN III, VII, IX, X?
III - Edinger Westphal VII - Superior SalivatoryIX - Inferior SalivatoryX - Dorsal Vagal Motor
Where are the general sensory cell bodies of CN V?
Trigeminal ganglion
Where are the general and special sensory cell bodies of CN VII?
Geniculate ganglion
Where are the general, special, and visceral sensory cell bodies of CN IX?
Superior and Inferior Glossopharyngeal ganglia