What are the 3 classifications for cranial nerves?
#NameSensory, Motor or BothOriginNucleiFunction0Cranial nerve zero (CN0 is not traditionally recognized.)Sensoryolfactory trigone, medial olfactory gyrus, and lamina term…inalisStill controversialNew research indicates CN0 may play a role in the detection of pheromones IOlfactory nervePurely SensoryAnterior olfactory nucleusTransmits the sense of smell; Located in olfactory foramina of ethmoidIIOptic nervePurely SensoryGanglion cells of retinaTransmits visual information to the brain; Located in optic canalIIIOculomotor nerveMainly MotorMidbrainOculomotor nucleus, Edinger-Westphal nucleusInnervates levator palpebrae superioris, superior rectus, medial rectus, inferior rectus, and inferior oblique, which collectively perform most eye movements; Located in superior orbital fissureIVTrochlear nerveMainly MotorMidbrainTrochlear nucleusInnervates the superior oblique muscle, which depresses, rotates laterally (around the optic axis), and intorts the eyeball; Located in superior orbital fissureVTrigeminal nerveBoth Sensory and MotorPonsPrincipal sensory trigeminal nucleus, Spinal trigeminal nucleus, Mesencephalic trigeminal nucleus, Trigeminal motor nucleusReceives sensation from the face and innervates the muscles of mastication; Located in superior orbital fissure (ophthalmic nerve - V1), foramen rotundum (maxillary nerve - V2), and foramen ovale (mandibular nerve - V3)VIAbducens nerveMainly MotorPosterior margin of PonsAbducens nucleusInnervates the lateral rectus, which abducts the eye; Located in superior orbital fissureVIIFacial nerveBoth Sensory and MotorPons (cerebellopontine angle) above oliveFacial nucleus, Solitary nucleus, Superior salivary nucleusProvides motor innervation to the muscles of facial expression, posterior belly of the digastric muscle, and stapedius muscle, receives the special sense of taste from the anterior 2/3 of the tongue, and provides secretomotor innervation to the salivary glands (except parotid) and the lacrimal gland; Located and runs through internal acoustic canal to facial canal and exits at stylomastoid foramenVIIIVestibulocochlear nerve (or auditory-vestibular nerve or statoacoustic nerve)Mostly sensoryLateral to CN VII (cerebellopontine angle)Vestibular nuclei, Cochlear nucleiSenses sound, rotation and gravity (essential for balance & movement). More specifically. the vestibular branch carries impulses for equilibrium and the cochlear branch carries impulses for hearing.; Located in internal acoustic canalIXGlossopharyngeal nerveBoth Sensory and MotorMedullaNucleus ambiguus, Inferior salivary nucleus, Solitary nucleusReceives taste from the posterior 1/3 of the tongue, provides secretomotor innervation to the parotid gland, and provides motor innervation to the stylopharyngeus (essential for tactile, pain, and thermal sensation). Some sensation is also relayed to the brain from the palatine tonsils. Sensation is relayed to opposite thalamus and some hypothalamic nuclei. Located in jugular foramenXVagus nerveBoth Sensory and MotorPosterolateral sulcus of MedullaNucleus ambiguus, Dorsal motor vagal nucleus, Solitary nucleusSupplies branchiomotor innervation to most laryngeal and all pharyngeal muscles (except the stylopharyngeus, which is innervated by the glossopharyngeal); provides parasympathetic fibers to nearly all thoracic and abdominal viscera down to the splenic flexure; and receives the special sense of taste from the epiglottis. A major function: controls muscles for voice and resonance and the soft palate. Symptoms of damage: dysphagia (swallowing problems), velopharyngeal insufficiency. Located in jugular foramenXIAccessory nerve (or cranial accessory nerve or spinal accessory nerve)Mainly MotorCranial and Spinal RootsNucleus ambiguus, Spinal accessory nucleusControls sternocleidomastoid and trapezius muscles, overlaps with functions of the vagus. Examples of symptoms of damage: inability to shrug, weak head movement; Located in jugular foramenXIIHypoglossal nerveMainly MotorMedullaHypoglossal nucleusProvides motor innervation to the muscles of the tongue (except for the palatoglossus, which is innervated by the vagus) and other glossal muscles. Important for swallowing (bolus formation) and speech articulation. Located in hypoglossal canal (MORE)
trigeminalThe Trigeminal nerve provides sensory information from the face, forehead, nasal cavity, tongue, gums and teeth it also helps with chewing
There are two cranial nerves that are involved with your sense of taste. Facial nerve (CN VII), more specifically chorda tympani branch is responsible for the anterior 2/3 of …your tongue. Glossopharyngeal nerve (CN IX) is responsible for the posterior 1/3 of your tongue. Olfactory nerve (CN I) is responsible for your sense of smell. (MORE)
Data mining classification involves algorithms, statistics, variables, coding, and many other functions. It is a term confusing to most, primarily because there are so many va…riables and much of it is based on prediction. There are class files, applications domains, and measurable properties that all need to be considered. However, (MORE)
Technology is synonymous for change. As technology represents change, everything that comes into contact with technology undergoes a revolution. In most cases, this revolution… entails improvements to processes, understandings, and implementation. The time for change was yesterday, and businesses are realizing stagnation results in lost revenues. Businesses are changing job (MORE)
A group of computers and networking hardware linked to each other by communication channels and protocols is called a computer network. Used to share data and resources betwee…n connected devices, a network is classified into types based on its scale, scope and usability. A local area network, or LAN, spans (MORE)
here's a useful mnemonic that I used in medical school: 1. Some - olfactory (sensory)2. Say - optic (sensory)3. Marry - oculomotor (motor)4. Money - trochlear (motor)5. But - …trigeminal (both)6. My - abducens (motor)7. Brother - facial (both)8. Says - vestibulocholear (sensory)9. Big - glossopharyngeal (both)10. Boobs - vagus (both)11. Matter - accessory (motor)12. More - hypoglossal (motor) (MORE)
It is not one of the cranial nerves (I-XII), it is cervical nerve number 6.
The cranial nerves that are attached to the medulla oblongata are the glossopharyngeal, vagus, accessory and hypoglossal nerves. The glossopharyngeal nerve is the ninth crania…l nerve that causes the tongue, throat, and parotid gland to function properly. The vagus nerve is the tenth cranial nerve which helps with motor production, mainly regarding the process of voice production. The accessory nerve is the eleventh cranial muscle whose only function is motor function, mainly regarding the trapezius and sternocledomastoid muscles. Lastly, the hypoglossal nerve is the twelfth cranial nerve which helps in the proper functioning of the muscles under the tongue. (MORE)