All Cranial Nerves

Mnemonic for nerve names
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Terms in this set (77)
CN VIAbducent nerveCN VI exitsuperior orbital fissureCN VTrigeminalCN V exitV1: superior orbital fissure V2: foramen rotundum V3: foramen ovaleEfferent nerve meaningnerves carrying signals away from the CNSAfferent nerve meaningnerves carrying signals to the CNS2 types of somatic nervesgeneral: tissues in head and neck that do not derive from pharyngeal arches branchial: tissues in head and neck that derive form branchial archesVisceral nerves innervationglands and smooth muscleSpecial nerves innervationall afferent (senses)CN I innervationolfactory epitheliumCN II innervationretina of the eye, sensory informationCN III innervationsuperior rectus, medial rectus, inferior rectus, inferior oblique, levator palpebraeCN IV innervationSuperior oblique m. (uses a pulley or trochlea to redirect its line of action, giving name to CN IV)CN VI innervationlateral rectus muscleCN V1 branches and exitophthalmic division through superior orbital fissure, (then branches thru supraorbital foramen and supratrochlear notch) -meningeal branch -frontal nerve -lacrimal nerve -supraorbital nerve -supratrochlear nerve -nasociliary nerve -ethmoidal nerves -ciliary nerves -infratrochlear nervesCN V2 branches and exitmaxillary division through foramen rotundum, (then branches thru inferior orbital fissures, infraorbital foramen, zygomatic foramen, pterygopalatine fossa, and palatine foramina) -meningeal branch -posterior superior alveolar nerves -anterior superior alveolar nerves -infraorbital nerve -zygomatic nerve -greater and lesser palatine nerves, and pterygopalatine ganglion that are parasympathetic (through pterygopalatine fossa)CN V3 branches and exitmandibular division through foramen ovale, (then branches thru mental foramen) -meningeal branch -buccal nerve -lingual nerve -mental nerve -inferior alveolar nerve -auriculotemporal nerveCN V3 motor functions-temporalis muscle -masseter muscle -medial pterygoid muscle -lateral pterygoid muscle -mylohyoid muscle anterior belly of the digastric muscle -tensor veli palatini in soft palate -middle ear: tensor tympaniCN I nerve typespecial afferentCN II nerve typespecial afferentCN III nerve type-general somatic efferent -visceral efferent (PS)CN IV nerve typegeneral somatic efferentCN V nerve type-somatic afferent -branchial somatic efferentCN VI nerve typegeneral somatic efferentCN I functionsmellCN II functionsightCN III functionmotor function of external eye muscles (except 2) motor function to ciliary muscle and sphincter pupillae muscleCN IV functionmotor function to superior oblique muscleCN V functionsgeneral sensation from face, dura mater, cornea, paranasal sinuses, mucosa of nose & mouth, anterior 2/3 of tongue, and teeth motor to muscles of mastication & 4 additional musclesCN VI functionmotor function to lateral rectus muscleCN VIIfacial nerveCN VII exitsinternal acoustic meatus (then branches thru stylomastoid foramen, petrotympanic fissure, and pterygoid canal)CN VII type of nerve-branchial somatic efferent -special afferent -visceral efferent (PS)CN VII functions-motor to muscles of facial expression & three additional muscles -secretomotor to lacrimal, submandibular, and sublingual glands -secretomotor to mucosa of nose & mouth -taste (anterior 2/3 of tongue)CN VIIIvestibulocochlear nerveCN VIII type of nervespecial afferentCN VIII functionshearing & balanceCN VIII exitinternal acoustic meatusCN IXglossopharyngeal nerveCN IX type of nerve-branchial somatic efferent -somatic afferent -special afferent -visceral efferent (PS) -visceral afferentCN IX functions-motor function: stylopharyngeus muscle -secretomotor & visceral sensory: parotid gland -visceral sensory: carotid body & sinus, superior pharynx, middle ear -general sensory: middle ear -general sensory & taste: posterior 1/3 of tongueCN IX exitjugular foramenCN Xvagus nerveCN X type of nerve-branchial somatic efferent -somatic afferent -special afferent -visceral efferent (PS) -visceral afferentCN X functions-motor function: pharyngeal constrictors, muscles of soft palate, laryngeal muscles, upper esophagus -general sensory: dura mater, ear canal, inferior pharynx, larynx -visceral sensory: base of tongue, pharynx, larynx, thorax, abdomen taste: palate and epiglottis secretomotor: thorax & abdomenCN X exitjugular foramenCN XIaccessory nerveCN XI type of nervegeneral somatic efferentCN XI functionsmotor function to traps & sternocleidomastoid musclesCN XI exit(enters through foramen magnum) and jugular foramenCN XIIhypoglossal nerveCN XII type of nervegeneral somatic efferentCN XII functionsmotor function to the extrinsic & intrinsic muscles of the tongueCN XII exithypoglossal canalCN VII branches out of stylomastoid foramenTo Zanzibar By Motor Car -temporal branch -zygomatic branch -buccal branches -marginal mandibular branch -cervical branch and also posterior auricular nerveCN VII branch that passes through inner ear canal to tonguechorda tympaniParasympathetic nervesCN III (oculomotor nerve) CN VII (facial nerve) CN IX (glossopharyngeal nerve) CN X (vagus nerve)Parasympathetic function of CN IIIcontraction of iris of the eye (smaller pupil)Parasympathetic function of CN VII-secretion of tears from lacrimal gland -secretion of mucous in nasal cavity -secretion of saliva from submandibular & sublingual glandsParasympathetic function of CN IXsecretion of saliva from parotid glandParasympathetic function of CN Xpost-cranial viscera (thorax and abdomen)What are the 4 ganglia that parasympathetic nerves in the head synapse?ciliary, pterygopalatine, submandibular, or oticBranches of which nerve suspend the 4 ganglia in the head?CN VTrigeminal nerve branches provide routes to (pre-synaptic or post-synaptic) nerve fibers to reach targetsPost-synapticWhat nerves exit through the superior orbital fissure?CN III (ophthalmic) CN IV (trochlear) CN v1 (ophthalmic division of trigeminal) CN VI (abducent)What are the 3 exits of the trigeminal nerve?V1 - superior orbital fissure V2 - foramen rotundum V3 - foramen ovaleWhich nerves exit through the jugular foramen?CN IX (glossopharyngeal) CN X (vagus) CN XI (accessory)