TRIGEMINAL NERVE Flashcards
largest cranial nerve is cranial nerve —
5
Trigeminal nerve has—— roots
-large——-;small—— root
mixed
sensory
motor
CN5 is the nerve of the—— pharyngeal arch
1st
CNV gets Proprioception from??
Tmj
Periodontium
Teeth
Hard palate
CNV gets Gets exterioceptive sensation from:
-skin of——
-mucous membranes of the—- and ___ cavity
-nasal sinus
-floor of—-
——of tongue
-cranial dura
face and forehead
nasal;oral
mouth, teeth
anterior 2/3
List the ROOTS of CN5
Sensory;motor; mesencephalic
SENSORY fibers from CN5 arise from ——-ganglion , develops from —-cells, are—— shaped and —— type of neurons
semilunar
neural crest
crescent
unipolar neurons
SENSORY fibers from CN5 are found in the—— cavity located superior to the——- bone
meckel’s
Petrous part of temporal
sensory central process of CN5 is from the—-,—-, and—-branches
Opthalmic
Maxillary
mandibular
sensory’s central process of CN5 is to the pons then —-nucleus and ___nucleus through its ascending and descending pathways respectively
upper sensory
motor
MOTOR ROOT of CN5 goes from——- to—- side of—— ganglion then through——- and joins—— nerve and supplies the——-
Pons
medial
semilunar
foramen ovale
mandibular
muscles of mastication
MESENCEPHALIC ROOT of CN5 is an—— station that accompany fibers of——-. It gets proprioception from—,—, —-and—-. It alsoo gets afferent impulses from—- receptors in the——
afferent
motor root
teeth tmj periodontal membrane hard palate
stretch
muscles of mastication
List all the sensory nuclei of the trigeminal nerve
main nucleus of the trigeminal nerve
- mesencephalic nucleus of the trigeminal nerve
- spinal nucleus of the trigeminal
List the sub-nuclei of the spinal nuclei of trigeminal nerve
oralis, interpolaris, caudalis
main nucleus -aka—- nucleus -found in—— -forms—— tract ———fibers terminate in this nucleus -coveys—- ,—- and——
upper
midpons
dorsal trigeminothalmic
ascending
light touch tactile discrimination proprioception
mesencephalic nucleus is not a true sensory ganglion.
T/F
If T, why
If F, why
F. Because it contains cells that look and function just like the ganglion cells because they are
mesencephalic nucleus conveys impulse from—- innervated by——, —-ligament and—-
muscles trigeminal nerve
periodontal
extraocular muscles
Largest sensory nucleus of the trigeminal nerve is ———?
The spinal nuclei
spinal nuclei extends from ——to level of—— and forms——- tract. It conveys—- and—-
main nucleus
C3 vertebrae
ventral trigeminothalmic
pain temperature
Pars oralis extends from main nucleus to ——(and transmits ——)
Pars interpolaris:from ——to—- in the—-(and transmits—-)
Pars caudalis:from—- to—— (transmits ——-)
pontomedullary juction; tactile
PM junction ; obex in the medulla; tactile
obex; C3 level; pain and temperature
motor nuclei Is also Located at—- and lies—- to main sensory nucleus
-its fibers distribute to muscles of —- pharyngeal arch
midpontine level
medial
1st
List the DIVISIONS of the CN5
- opthalmic
- maxillary
- madnibuar
Smallest division of the CN5 is ——?
OPTHALMIC division
Opthalmic division of CN5 is from—— part of—— ganglion to—- wall of——
antero-medial
semilunar
lateral
cavernous sinus
Which division of the cranial nerve 5 innervates the upper eyelid and lower eyelid
Upper -opthalmic
Lower-maxillary
Opthalmic division of trigeminal nerve sends communication branches to CN—,—,—
3,4,6
OPTHALMIC division of trigeminal nerve passes through which foramen in the skull?
Superior orbital fissure
Opthalmic division of trigeminal nerve divides into branches before or after passing through the foramen in the skull??
After
Branches of the opthalmic division of trigeminal nerve are ???
Frontal
Lacrimal
Nasocilliary
smallest branch of opthalmic nerve is the ——?
LACRIMAL NERVE
LACRIMAL NERVE enters the orbit through the—— part of the fissure, runs across the—— part of the—- region and communicates with—— branch of ——-nerve Then enters the—— and gives several branches and finally pierces the—— and ends in the——
narrowest
upper ;lateral
zygomatic; maxillary
lacrimal gland
oribital septum
upper eyelid
Lacrimal nerve and zygomatic branch of maxillary nerve communicate on the ——-
Lacrimal gland
largest branch of opthalmic nerve is the ——?
FRONTAL NERVE
FRONTAL NERVE
- runs forward between—- and—-
- divides into 2 branches——- in the orbit:—-,——
levator palpebral
periosteum
midway
supratrochlear
supraorbital
Which is bigger?
supratrochlear or supraorbital
supratrochlear
——gives filament to join infratrochlear and —— gives twigs to pericranium
Supraorbital
Supratrochlear
Anterior branches from—— mandibular nerve includes ——-,——-,—— ,———
divided
external pterygoid
masseter nerve
buccal nerve
nerves to temporal muscle(ant and post deep)
Posterior branches from—— mandibular nerve includes——-,——-,——-
divided
auriculotemporal nerve
lingual nerve
inferior alveolar nerve
Branches from—- mandibular nerve includes ——-and——
undivided
nervous spinosus
nerve to internal pterygoid
GANGLIONS??
Just say what you know
—-ganglion
—-ganglion
——-ganglion
——-ganglion
Ciliary
Otic
Submandibular
Pterygopalatine
Maxillary nerve of trigeminal nerve is from—— of—- ganglion , passes through—-opening in the skull to enter the—- fossa
- from that fossa it passes through the ——-to enter the——-
- then though the——- groove,canal, and foramen to give——
middle; semilunar
foramen rotundum
pterygopalatine
inferior orbital fissure
orbital cavity
infraorbital; terminal branches
List the Branches of the maxillary division of trigeminal nerve
zygomaticotemporal
zygomaticofacial
posterior superior alveolar branch
Middle superior alveolar branch
Anterior superior alveolar branch
zygomaticotemporal:
- exits the zygomatic bone on its—- surface
- pierces the—— to supply skin over the—-
- receives a branch from—- nerve
- communicates with—- nerve and—— nerve
medial
temporal fascia; temple
lacrimal
facial
auriculotemporal
zygomaticofacial:
- exits the zygomatic bone on its—— surface
- supplies skin over——
- communicates with—- nerve and ——branch of maxillary
lateral
malar prominence
facial
inferior palpebral
Points of origin of the posterior, middle, and anterior superior alveolar branch of the maxillary nerve
Posterior :pterygopalatine fossa
Middle:posterior part of Infraorbital canal
Anterior: just before the maxillary nerve exits the Infraorbital foramen
INNERVATION of hard palate
-sensory:
.—— . Both from—— division
.—- palatine(middle and posterior)-supplies uvula, tonsil, soft palate
greater and nasal palatine
maxillary
lesser
