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| motor to mm. derived from branchial arches |
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| sensory of hearing, balance, and sight |
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| sensory of smell and taste |
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| Three fiber types that have brain stem nuclei |
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| GSE (oculomotor nucleus), GVE (Edinger-Westphal nucleus) |
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| GSA, BE (masticatory nucles) |
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| GVE (superior salivatory nucleus), BE (facial nucleus), GSA, SVA |
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| GVE (inferior salivatory nucleus), BE (nucleus ambiguous), SVA, GVA |
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| GVE (dorsal motor nucleus), BE (nucleus ambiguous), GVA, SVA |
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| structures supplied by GSE column |
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| Structures innervated by BE column |
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| stylopharyngeus, larynx, pharynx, SCM, and trapezius mm. |
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| four parasympathetic relay stations in brain |
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| ciliary, p2, otic, and submandibular ganglions |
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| What is different about the Edinger-Westphal nucleus |
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| different cell bodies than those in oculomotor nucleus. supplies intrinsic eye mm. preganglionic cell bodies in EW nucleus. postganglionic cell bodies in ciliary ganglion. |
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| Location of post and preganglionic nuclei of superior salivatory nucleus (VII) and what they innervate |
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preganglionic- cell bodies in superior salivatory nucleus, innervate submandibular and sublingual salivary glands, lacrimal gland, and mucous of nose, palate, nasopharynx, and orbit
postganglionic cell bodies: in submandibular ganglion and P2 ganglion. submandibular ganglion nerves innervate submandibular and sublingual salivary glands. P2 ganglion nerves innervate lacrimal and mucous glands. |
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| Location of preganglionic and postganglionic cell bodies and what they innervate (inferior salivatory nucleus) |
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preganglionic: inferior salivatory nucleus (IX), innervate inferior salivatory nucleus via the lesser petrosal nerve
postganglionic: cell bodies in otic ganglion, innervate salivatory gland via auriculotemporal n. |
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| postganglion and preganglionic cell bodies of dorsal motor nucleus (X) and what they innervate |
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preganglionic: dorsal motor nucleus
postganglionic: paramural or intramural ganglia, innervate thyroid, thoracic, and abdominal organs |
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| innervation of 4th and 6th arches |
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| Innervation of vagus, with exceptions |
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| tongue (except palatoglossus- XII), palate (except tensor palati- V), and pharynx (except stylopharyngeus - IX) |
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| what is portio minor, what types of fibers does it have? |
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| smaller root of trigeminal nerve carrying motor neurons, joins mandibular nerves. carries motor and propriocetpive fibers to 1st arch muscles. |
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| what is nervus intermedius, and what fibers does it have |
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| component of VII (facial), both sensory (SVA, GSA, and GVA), and motor. similar to portio minor b/c both have GVE. different b/c nervus intermedius have small sensory roots while portio minor has short motor fibers. |
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| Supply of motor and sensory fibers to pharyngeal plexus |
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| lymph node below digastric and where it receives drainage |
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| jugulodigastric ln, receives drainage from pharynx, palatine tonsil, and tongue. |
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| What is the waldeyer's ring, what is the clinical significance |
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| formed by lingual, palatine, and nasopharyngeal tonsils. if enlarged, can close pharyngotympanic tube |
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| AKA for submandibular duct |
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| AKAs for nasopharyngeal tonsil |
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| pharyngeal tonsil, adenoid |
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