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115 Cards in this Set
- Front
- Back
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What are the two components of the trigeminal ganglion
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GSA and motor component
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What are the sensory fibers of the trigeminal made up of?
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GSA
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where do the motor nerve cell bodies located in the trigeminal ganglion?
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along side the ganglion
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what is the first branch of the trigeminal called?
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V1 opthalmic
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what is the fun't of V1 branch?
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general sensory
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where does the opthamlic branch divide into three branches
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just before the eye socket throught the superior orbital fissure
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name the three branches of the opthalmic branch?
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Lacrimal branch, Frontal branch, Nasociliary branch
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what does the lacrimal branch innervate?
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innervates skin of the upper eye lid
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what are the terminal nerves of the frontal branch of the opthalmic?
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Supraorbital and supratrochlear
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what does the supraorbital nerve innervate of the frontal branch?
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innervates the scalp past the midline
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what does the supratrochlear nerve innervate of the frontal branch?
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innervates the scalp(named b/c it passes in above the trochlear
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What are the four nerve branches of the nasociliary branch of the opthalmic branch of the trigeminal
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posterior ethmoidal, anterior ethmoidal, infratrochlear, long ciliary
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What does the posterior ethmoidal innervate
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run into ethmoidal air sinuses. Supplies the spenoid sinus and the postieror ethmoid sinus
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what does the anterior ehtmoidal innervate?
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supplies the anterior and middle ethmoid sinus before entering and supplying the nasal cavity
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what does the infrathrochlear innervate?
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supplies the skin of the eyelids and bridge of the nose, the conjunctiva and all the lacrimal structures
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what does the long ciliary innervate?
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has 2-4 branches that enter the posterior part of the sclera of the eye
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what fun't does the maxillary branch of the trigeminal have?
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GSA
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where does the maxillary branch travel?
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leaves the cranial vault goes through foramen rotundu,, gives off branches in the pterygoid space
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Name the five branches of the maxillary branch of the trigeminal?
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Posterior Superior alveolar, zygomatic, infraorbital, descending Palatine, and Pterygopalatine(speno-palatine
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what does the posterior superior alveolar innervate?
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goes to maxillary dentition, from 1st premolar to 3rd molar. Enters the posterior surface of the maxilla and supplies the max sinus, max molars, giniva and mucosa alongside max molars
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what does the zygomatic nerve of the maxiallry branch innervate?
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zygomaticofacial, zygomaticotemporal
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what does the infraorbital nerve of the maxillary branch inneravte?
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considered the continuation of the maxillary division of the trigeminal nerve
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where does the descending Palatine of max branch go through?
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goes through spheropalatine foramen.(Great and lesser palatine branches
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what does the pterygopalatine of max branch innervate?
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Nasopalatine-goes to septum, goes through incisive canal to innervate the palate
posterior nasal pharyngeal |
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Where does the mandibular branch of the trigeminal go through
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the foramen ovale in sphenoid bone
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what are the fun't of the mandibular branch
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GSA, and SVE(muscles from the first pharyngeal arch
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Name the four branches of the mandibular branch of the trigeminal
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Auriculotemporal, inferior alveolar, lingual, long buccal aka buccal branch of five
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What does the auriculotemporal of the mandibular branch innervate?
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inneravtes tmj joint capsule and skin over tmj
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What does the inferior alveolar of the mandibular branch innervate?
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innervates all of the lower dentition
mental, mylohyoid |
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What does the lingual of the mandibular branch innervate?
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supplies the mucous membrane of the anterior 2/3 of the tongue and gingiva on the lingual side of the mandibular teeth
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What does the long buccal of the mandibular branch innervate?
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into skin of cheek and oral cavity mucosa (sensory
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What are pretramatic branches
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when a branch of a cranial nerve arising from a more posterior branchial arch jions a nerve branch form a cranial nerve which comes from a more anterior branch arch
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what are first order cells
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respponsible for receiveing information from sensory receptors somewhere in the body sensory fibers are usually three fibers away
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Where does the facial nerve go through?
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goes through internal acoustic meatus, into inner ear before ( cranial nerve VII and VIII go into inner ear too)
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Once the facial nerve is in inner ear how does it branch? what speical characteristic does it have
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it branches backwrads and forwaard. there is a ganglion located at the bend and has speical sensation
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what is the name of the branch of the faical nerve that comes off forward to anterior facial canal
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greater petrosal
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what are the nerve conponments of the greater pertosal nerve
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GVE and SVE (taste sensation to palate).
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what is located where the greater pertosal nerve exits the skull
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hiatus of the facial Canal
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WHat is the the name the the faical nerve branch that turns backward through the posterior facial canal
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faical nerve proper( it is the larger trunck)
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where does the facail nerve prorper branch from.
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posterior facial canal
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what is located where the facial nerve proper exits the skull
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there is a foramen , the stylomastoid foramen
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what can cause buzzing and ringing in the ear?
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artherosclerosis of the internal jugular vein and internal carotid artery which runs adjacent to middle and inner ear
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what 4 muscles does the facial nerve innervate
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1.stylohoid,
2.posterior belly of digastric (comes from branchial arch II) 3.anterior belly digastric ( first branchial arch) 4.mylohoid |
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Facial nerve enters what gland?
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parotid gland. it also branches there.
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what is the chorda tympani?
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branch of facial nerve fiber
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what does the petero tympanic fissure join?
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joins the lingual branch of V3
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what facial nerve goes into the mandible
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inferior alveolar
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what is the fun't of the facial nerve proper
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SVE, GSA
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name the 6 branches of the facial nerve proper
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Auricular, temporal, zygomatic, Buccal, mandibular, and cervical
"and two zebras bit my cousin" |
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what does the temporal branch of the facial nerve proper innervate?
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innervates muscles above the orbit
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what does the buccal branch of the facial nerve proper innervate?
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goes around parotid, innervates cheek
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what does the mandibular branch of the facial nerve proper innervate?
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under the lower lip, runs along border of mandible
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what does the cervical branch of the facial nerve proper innervate?
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across mandible into shoulder, innervates a muscle that helps pull down the mandible
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where do the motor fibers arise from of the cervical nerve branch of the facial nerve?
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from the motor nucleus of VII
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where do the 1st order sensory fibers arise from of the cervical nerve branch of the facial nerve?
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cell bodies are in the geniculate ganglion
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where do the 2nd order sensory fibers arise from of the cervical nerve branch of the facial nerve?
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are in mesencephalic nuclues of V
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where do all the branches of the facial nerves innervate?
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Primarilay motor, brachial merit some from 2nd (SVE)
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where is the occipito -frontalis muscle interconnected with and what is it innervated by?
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occipital innervated by auricular branch
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where are the anterior, superior and posterior auricular muscles located?
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muscles around the ear
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where is the orbicularis oculi muscle located?
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gpes around the eye?
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where is the corrugator supercilli located?
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eyebrow
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where the procerus muscel located?
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muscle that cmoes along the side of the bridge of the nose, nasal process
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what is the nasalis located?
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off frontalis onto bridge of nose
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where are the zygomaticus major and minor muscle located?
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long muscle that comes from cheek bone to corner of lip
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what is the fun't of levator anguli oris?
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elevates the corners of the mouth
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leavator labii superioris
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maxilla, elevates the upper lip and diallates the nostrils
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buccinator located?
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cheek
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risoris
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never see it, helps you smile
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what is the fun't of the depressor anguli oris muscle?
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dpress the corners of the mouth
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what is the fun't of the depressor labii inferioris
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depress the lower lip
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mentalis is located?
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comes off the mental protuberances and up to the center of the lip
'the pouting muscle' |
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what is the fun't of the platyma muscle?
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pulls down mandible, makes you look like a lizard
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o of s
Anterior Ethmoidal foramen |
anterior ethmoidal nerves and vessels
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o of s
carotid canal |
internal carotid artery, deep petrosal nerve and other postganglionic sympathetis (carotid plexus)
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o of s
cribiform plate |
olfactory nerves
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o of s
faical canal |
facial nerve proper
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o of s
foramen cecum |
emissary vein from nasla cavity to superior sagital sinus
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o of s
foramen lacerum |
meningeal br. of ascending pharyngeal a., emissary v. from pterygoid venous plexus, greater superficial petrosal n., deep petrosal n. from carotid plexus
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ofs
foramen Magnum |
junction of spoianl cord and braistem, anterior and posterior spinal arteries and veins, alar ligaments, tectorial membrane, apical ligament, spinal accessory nerve
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o of s
Foramen Ovale |
mandibular br. of trigeminal nerve, accessory meningeal a., lesser petrosal n.
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foramen rotundum |
maxillary br. of trigeminal nerve
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foramen spinosum |
middle meningeal a., reccurent br. of mandibular nerve
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foramen vesalii |
emissary vein from pterygoid venous plexus
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o of s
greater palatine foramen |
anterior (greater) palatine nerves and vessels, posterior (lesser) palatine nerves and vessels. These are branches of pterygopalatine or descending palatine nerves and vessels
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o of s
Hiatus of the Facial (greater superficail pertrosal) canal |
greater superficial petrosal n., and petrosal branches of middle menigeal artery
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o of s
hypoglossal canal |
hypoglossal nerve and meningeal branch of descending palatine nerves and vessels
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Incisive (Nasopalatine) Canal |
nasopalatine branches of descending palatine nerves and vessels
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inferior orbital (sphenomaxillary) Fissure |
maxillary nerve branches zygomatic infraorbital, lacrimal br. of greater petrosal n., infraorbital vesseals
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tympanic canaliculus |
tympanic branch of glossopharyngeal nerve (will become lesser pertosal), tympanic br. of ascending pharyngeal a.
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infraorbital foramen |
infraorbital br. of maxillary n., infraorbital vessels
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o of s
internal acoustic meatus |
vestibulocochlear n., facial n., internal auditory br. of basilar a.
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jugular foramen |
internal jugular v., glossopharyngeal n., vagus n., spianl accessory n.
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Lesser Palatine Foramen |
posterior (lesser) palatine nerves and vessels. These are branches of pterygopalatine or descending palatine nerves and vessels
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mandibular (inferior alveolar) Foramen |
inferior alveolar n. and vessels
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Mastiod Canaliculus ( tympanomastoid fissure) |
auricular branch of vagus n.
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Mastoid Foramen |
mastoid branch of occipital a, emissary v.
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mental foramen |
mental n. and vessels
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ofs
nasolacrimal canal |
tear duct
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optic foramen |
optic n., opthalmic a., central retinal a.
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parietal foramen |
emissary v.
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petrotympanic (squamotympanic) fissure |
chorda tympanic branch of the facial n.
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o of s
pharyngeal canals ( along with vomerovaginal canals) |
phyngeal br. of maxillary a., pharyngeal brs. of greater petrosal n.
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o of s
posterios condylar canal |
emissary v., meningeal br. of occipital a.
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posterior superior alveolar (maxillary) foramen |
posterior superior alveolar n. and vessels
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pterygoid (vidian) canal |
nerve of pterygoid canal (combined sympathetic postganglionics of deep petrosal nerve and parasympathetic preganglionics from greater petrosal nerve)
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o of s
Pterygomaxiallry fissure |
maxially a., posterior superior alveolar n.
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pterygopalatine (descending palatine) canal |
descending palatine nerves and vessels
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o of s
pterygopalatine (sphenopalatine) foramen |
pterygopalatine vessels, nasopalatine n., posterior nasal nerves., pharyngeal nerves and vessels
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stylomastoid foramen |
facial nerve proper
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o of s
sulcus tubae auditvae |
groove for cartilaginous portion of auditory tube
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o of s
superior orbital fissure |
occulomoter, opthalmic br. of trigeminal n., trochlear n., abducent nerve., opthalamic v.
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o of s
supraorbital fissure |
supraorbital n. and vessels?
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o fo s
zygomaticofacial foramen |
zygomaticofacial br. of zygomatic n. of zygomatic br. of maxillary
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o of s
zygomatico-orbital foramen |
zygomatic nerve of V2
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zygomaticotemporal foramen
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zygomaticotemporal br. of zygomatic br. of maxillary
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