HEAD INNERVATIONS Flashcards
Lacrimal gland innervated by?
Superior Salivatory Nucleus
Lacrimal gland synapses on?
on the Pterygopalatine ganglion
Pain from which tract?
Lateral Spinothalamic Tract
Patient is given topical to relieve what fibers?
A delta fibers
NT for A delta fibers
glutamate
Sensation on the face & teeth involved what nucleus?
Main Sensory Nucleus of V
What are the primary sensory neurons of termination involved in pain from the maxillary 2nd molar?
Spinal Nucleus of V
Nucleus of CN V include?
I. Mesencephalic nucleus: proprioception of face, jaw-jerk reflex
II. Main sensory nucleus: light touch
III. Spinal Trigeminal nucleus: pain & temperature
Which subnucleus of the spinal nucleus of V is responsbile for pain sensation ?
pars interpolaris
Pain from face goes to?
VPM
difference between Facial pain & Body pain?
Facial Pain: VPM (Ventral Posteromedial nucleus)
Body pain: VPL (Ventral posterolateral nucleus)
Branchiomeric nerves come from where?
CN 5, 7, 9, 10
Branchiometric nerves are nerves to striated muscles of the head & neck that develop from ?
bracnchial arches
Nerves included ?
CN 5 (1st arch), CN 7 (2nd arch), CN 9 (3rd arch), CN 10 (4th/6th arch)
What nerve involved in blinking
CN V1 & CN 7
What nerve innervates the skin above the upper lip?
infraorbital N
Patient complains about burning sensation in the mandibular anterior?
Mental nerve
What innervates the posterior hard palate?
Greater palatine N (anterior hard palate = nasopalatine N)
Which nerve innervate soft plate?
Lesser palatine nerve (CN V2)
Which is not part pf the Cavernous Sinus?
Optic Nerve
Nerves that ARE assoc with the cavernous sinus are?
CN 3,4,6, V1, V2 (mnemonic: O TOM CAT)
what is O TOM CAT?
O: oculomotor nerve T: trochlear nerve O: opthalmic branch of trigeminal nerve M: maxillary branch of trigeminal nerve C: internal cartoid artery A: abducent nerve T: trochlear nerve
What parasympatheytic nerve runs through the foramen lacerum?
Greater Petrosal
What foramen transmits pre-ganglionic parasympathetic fibers?
Foramen Ovale (for lesser petrosal N)
Before synapsing in the submandibular ganglion, pre-parasympathetic travel to which nerve?
Chorda tympani
What action of the lingual nerve stays with the nerve through its course?
Sensory to anterior 2/3 of tongue
Which nerve does not transmit taste fibers from the tongue?
a. V
b. VII
c. X
a. V
What is the position of the lingual nerve in respect to the inferior alevolar nerve?
anterior & medial
What ganglion does the postsympathetic for the submandibular ganglion?
Superior cervical ganglion
Intraoral approach to get the submandibular ganglion
cut through the mucous membrane only
if someone has motor loss underneath their right zygoma, what nerve is damaged?
CN 7 when exiting the stylomastoiid foramen
If you cut the nerve for the stylomastoid foramen, what do you lose innervation to?
Orbicularis muscle (oculi & oris)
CN VII & VIII goes through?
Internal Acoustic Meatus
What nerve brings preganglionic para nerve fibers to the otic ganglion, then eventually to the parotid gland?
Lesser petrosal nerve via glossopharyngeal N (CN 9)
What goes between the superior pharyngeal constrictor & middle pharyngeal constrictor ?
CN 9
What nerve goes between Palatoglossus & Paratopharyngeus?
Tonsillar branch of CN9
Circumvallate papilla are innervated by what nerve?
CN 9
What cranial nerve innervates levator veli palatini?
CN X
What nerve does not come out of the jugular foramen?
CN 12
Difference between Jugular foramen and hypoglossal canal?
Jugular foramen= CN 9,10,11
hypoglossal canal= CN 12
gag reflex is a sensory limb (afferent) mediated by?
CN 9 motor by CN 10
What is not innervated by the hypolossal nerve?
Palatoglossal (CN 10)
Muscles innervated by Ansa Cervicalis (CI-C3) include?
Infrahyoid muscle
