Cranial Nerves Flashcards
Maxillary N. (branches)
Pterygopalatine Nerves zygomatic nerves Posterior Superior Alveolar n. Infraorbital n. Sensory (trigeminal ganglion) Post-G Sym ( Superior cervical ganglion, internal carotid plexus cavernous sinus and N or pterygoid canal) Skin of lower lid, nose, upper lip, cheek, cheekbone, mucosa of nasal cavity, oral cavity, pharynx dental pulp: upper teeth
Chorda Tympani N.
Branch of facial n. in facial canal Taste (geniculate ganglion) mucosa of anterior 2/3 of tongue Pre-G Para (superior salivatory nucleus in pons) submandibular ganglion (post-G para travel with lingual n and innervate sublingual and submandibular glands)
Anterior Superior Alveolar N.
Branch of infraorbital (maxillary) Sensory (trigeminal ganglion) Post-G Sym ( external carotid plexus) upper canines and incisors S, Post-G S, Post-G Parap (pterygopalatine ganglion) maxillary sinus
what transmits n. and artery of masseter muscle?
mandibular notch
Mylohyoid groove
houses mylohyoid nerve
Mandibular N. (axons and branches)
Meningeal branch muscular sensory S (trigeminal ganglion), Post G S (external carotid plexus vis maxillary a) and LMN (trigeminal motor nucleus in pons) Skin: lower lip, chin, cheek, ear, temple mucosa: oral cavity Muscles of mastification
Oculomotor N. Branches
CN III Superior Ramus Inferior Ramus
what transmits superior alveolar a .n. and v.
alveolar canal
Mandibular Canal
houses inferior alveolar a. v. and n within the ramus and body of mandible
Trochlear N. (innervation)
Superior Oblique Muscles
what transmits middle meningeal a.?
foramen spinosum
Lingual N.
Sensory branch of mandibular n. S (trigeminal ganglion), post G Sym (external carotid plexus) mucosa: anterior 2/3 of tongue, floor of oral cavity and adjcaent gingiva Taste (chorda tympani n.) ant. 2/3 of tongue S, Post-G Sym, Post-G Para (Chorda tympani n. by way of submandibular ganglion) lingual, sublingual, submandibular glands
Lateral Posterior superior nasal N.
Sensory (trigeminal ganglion) Post-G Sym ( N of pterygoid canal) Post-G Parap (pterygopalatine ganglion) Mucosa of lateral wall of nasal cavity
Vestibulocochlear n
CN VIII Sensory for hearing
Muscular branches of mandibular n. (branches)
Nerve to medial pterygoid masseteric n. deep temporal n. nerve to lateral pterygoid
Olfactory N. Branches
CN1 Olfactory bulb Olfactory tract
Branches in facial canal
Facial n. N to Stapedius Chorda tympani n.
what transmits nasocilliary n?
superior orbital fissure
What is the superior sagittal sulcus?
houses superior sagittal sinus
Trochlear N. (axons)
CN IV Sensory (ophthalmic n. in Superior orbital fissure) Post-G Sym (from superior cervical ganglion/internal carotid plexus in cavernous sinus) LMN (trochlear nucleus in midbrain)
What is the function of the sulcus chiasmatis?
houses optic chiasm
Ophthalmic N. (Branches and axons)
Lacrimal N. Frontal N. Nasociliary N. Sensory ( with cell body in trigeminal ganglion) Post-G Sym (Superior cervical ganglion/internal carotid plexus in cavernous sinus)
Jugular notch and foramen
transmits: internal jugular v. glossopharyngeal n. vagus n. accessory n.
What do you do to test the response of the eye?
Pupillary Reflex:
S: Optic
M: Oculomotor (to celiary ganglion)
Blink Test:
S: Ophthalmic N (Long and short ciliary)
M: Frontal (eye lid movement)
what transmits the lacrimal n.?
Superior orbital fissure
Trigeminal N. Branches
CN V Ophthalmic N. Maxillary N. Mandibular M.
Carotid Groove function
houses internal carotid a. and carotid v.
Long buccal N.
Sensory branch of mandibular n. S (trigeminal ganglion), post G Sym (external carotid plexus) Buccal skin buccal mucosa and gingiva
what is the function for sulcus for sigmoid sinus?
houses sigmoid sinus
what houses the optic chiasm?
Sulcus chiasmatis
Glossopharyngeal N. branches
CN IX Tympanic n. carotid branch pharyngeal branch tonsilar branch lingual branch N. to stylopharyneus m.
Greater Petrosal N. (branches and axons)
Pre-G Para (superior salivatory nucleus in pons) pterygopalatine ganglion Sensory (taste from geniculate ganglion) to innervate muscosa of palate N. of Pterygoid canal
N. to stapedius
Branch of facial n. in facial canal LMN form Facial motor nucleus in Pons stapedius muscle
Posterior Ethmoidal N. (axons and innervation)
Sensory (trigeminal ganglion) Post-G Sym (Superior cervical ganglion/internal carotid plexus cavernous sinus) Mucosa of superior nasal cavity
Long Ciliary N. (axons and innervation)
Sensory (trigeminal ganglion) Post-G Sym (Superior cervical ganglion/internal carotid plexus cavernous sinus) Eye Post-G Sym of dilator muscles of iris
Short Ciliary N (axons and innervation)
Sensory (trigeminal ganglion) Post-G Sym (Superior cervical ganglion/internal carotid plexus cavernous sinus) Innervation of eye PostG Sym dilator muscle of iris PostG para (ciliary ganglion) constrictor muscle of iris
Anterior ethmoidal n. (axons and innervation)
Sensory (trigeminal ganglion) Post-G Sym (Superior cervical ganglion/internal carotid plexus cavernous sinus) Mucosa of frontal and ethmoidal sinus, superior nasal cavity skin overlying nose
what transmits the trochlear n?
superior orbital fissure
Frontal N. (branches)
Supraorbital N. Supratrochlear N.
What houses the pituitary?
hypophyseal fossa
what is the function of the hypophyseal fossa?
houses pituitary
what transmits mandibular n.?
foramen ovale
N. to mylohyoid
Branch of inferior alveolar n. (sensory branch of meningeal n.) S (trigeminal ganglion), post G Sym (external carotid plexus) LMN (trigeminal motor nucleus of pons) mylohyoid m anterior digastric m.
Foramen Rotundum function
transmits maxillary n.
Nerve to lateral pterygoid
Muscular branch of mandibular n. S (trigeminal ganglion), post G Sym (external carotid plexus) LMN (trigeminal motor nucleus of pons) Lateral pterygoid m.
Nasociliary N. Branches
Anterior ethmoidal N. Posterior Ethmoidal N. Long Ciliary N. Short Ciliary N. Infratrochlear N.
Pterygopalatine nerves (Branches)
Nerves that emerge from Pterygopalatine ganglion Phargyngeal n. lateral posterior superior nasal n. medial posterior superior nasal n. greater palatine n. lesser palatine n.
Nerve to medial pterygoid
Muscular branch of mandibular n. S (trigeminal ganglion), post G Sym (external carotid plexus) LMN (trigeminal motor nucleus of pons) Medial pterygoid tensor palatini tensor tympani
Infraorbital n. a. and v. runs through?
infraorbital groove and canal
Superior Ramus of Oculomotor N. (axons)
Muscular Branches Sensory (from ophthalmic n. in Superior orbital fissure) Post-G Sym (superior cervical ganglion/internal carotid plexus in cavernous sinus) LMN (oculomotor nulcues in midbrain)
Meningeal Branch
branch of mandibular n. S (trigeminal ganglion), post G Sym (external carotid plexus) LMN (trigeminal motor nucleus of pons) Cranial dura mater
Facial N branches
Branches in facial canal Greater petrosal n. branches in stylomastoid foramen branches on face
what transmits abducent n?
superior orbital fissure
Infratrochlear N. (axons and innervation)
Sensory (trigeminal ganglion) Post-G Sym (Superior cervical ganglion/internal carotid plexus cavernous sinus) skin over bridge of nose
Alveolar canals function
transmits superior alveolar a .v. and n
what transmits meningeal recurrent branch of mandibular a.
foramen spinosum
what transmits accessory meningeal a?
foramen ovale
what transmits the superior ophthalamic vein?
superior orbital fissure
What is function of optic canal?
transmits: optic n. ophthalmic a.
What houses the sublingual gland?
Sublingual Fossa