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Neuro2: Brainstem Nuclei
Neuro2: Brainstem Nuclei
17
Medical
Graduate
05/11/2012

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Term
Occulomotor Nucleus
Definition
CNIII, GSE Superior(contra.) & Inferior Rectus (ipsa.), Medial Rectus (ipsa.), Inferior Oblique (ipsa.) Levator Palpebrae. (Not LR4, SR6 ,or pupillary dilator)
Term
Edinger-Westphall
Definition
GVE Preganglionic Parasympathetics - Pupillary sphincter, Ciliary Muscle
Term
Trochlear Nucleus
Definition
GSE SO4
Term
Mesencephalic Nucleus of the Trigeminal
Definition
GSA Muscle spindles and other mechanoreceptors (involved in stretch reflex)
Term
Main Sensory Nucleus of the Trigeminal
Definition
SVE Skin, Deep Tissues, and dura mater of the head Touch and jaw position
Term
Abducens
Definition
GSE LR6
Term
Spinal Nucleus and Tract of the Trigeminal
Definition
GSA Pain and temperature information for face and posterior 1/3 tongue.  Decussates in the level of the spinal nucleus in the caudal medulla and rise in the tigeminothalamic tract to the VPNI of the thalamus. Caudal portion does sensation to posterior tongue, nasal and oral pharynx, and middle ear.
Term
Facial Nucleus
Definition
SVE Muscles of facial expression + stapedius. Corneal blink reflex efferent pathway (both eyes blink if one is touched).  The afferent pathway is from the spinal trigeminal nucleus.
Term
Superior Salivary Nucleus
Definition
GVE Preganglionic parasympathetic. Submandibular and sublingual salivary glands, nasal and palatine glands, lacrimal glands
Term
Solitary Nucleus
Definition
GVA [(XII) (IX) (X)], SVA [(VII) and (IX)] *VII: Taste buds of the palate and anterior 2/3 of the tongue; some mucous membranes of the nasopharynx. IX: Taste buds to the posterior third of the tongue, carotid body and sinus. X: Taste buds of epiglottis+esophagus, thoracic and abdominal viscera, mucous membrans of the larynx and laryngeal pharynx.
Term
Cochlear Nucleus
Definition
SSA Organ of Corti
Term
Vestibular Nucleus
Definition
SSA Semicircular canals, maculae of utricle and saccule
Term
Inferior Salivary Nucleus
Definition
GVE Preganglionic parasympathetics. Parotid Gland
Term
Nucleus Ambiguus
Definition
SVE IX: Stylopharyngeous X:Pharynx and larynx
Term
Dorsal Motor Nucleus of the Vagus
Definition
GVA Thoracic and abdominal Viscera
Term
Hypoglossal
Definition
GSE All tongue muscles except palatoglossus.
Term
Accessory Nucleus
Definition
Debatable - GSE or SVE Sternocleidomastoid and Trapezius
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