Trigeminal Nerve Divisions Dh1 Uthscsa

Front 1

What are the branches of the opthalmic division

Back 1

NFL:
Nasociliary
Frontal
Lacrimal

Front 2

The opthalmic division has 3 main branches. (NFL) what are the sub branches of the nasociliary branch, and what are its target organs

Back 2

Nasociliary:
sub-branches (CIA)
ciliary- eyeball
anterior/posterior ethmoidal- frontal, ethmoid, and sphenoid sinuses
infratochlear- medial eyelids and side of nose

Front 3

the opthalmic nerve has 3branches (NFL) what are the sub branches of the Frontal nerve and what are its target organs

Back 3

Frontal:
Supratrochlear
Supraorbital
Skin of upper eyelids and scalp

Front 4

Lacrimal nerve is a branch of the Opthalmic division. What are the target organs of the lacrimal nerve

Back 4

lacrimal gland, conjunctiva and adjacent skin

Front 5

What are the branches of the maxillary nerve

Back 5

(PINGLZ):
PSA nerve
Infraorbital nerve
Nasopalatine nerve
Greater palatine nerve
Lesser palatine nerve
Zygomatic nerve

Front 6

What are the target organs of the PSA nerve

Back 6

target organs of PSA:
max molar teeth
EXCEPT mesiobuccal root of the first molar
surrounding gingiva

Front 7

The infraorbital nerve is a branch of the maxillary nerve. what are the sub branches of the infraorbital nerve and what are their target organs

Back 7

Infraorbital nerve: (PAM)
Palpebral, nasal, labial nerve- lower eyelid, lip, nose and cheek
ASA (anterior superior alveolar)- maxillary incisor teeth
MSA (middle superior alveolar)- premolar and mesiobuccal root of first molar

Front 8

nasoplatine nerve is a branch of what division. what are its target organ.

Back 8

nasopalatine nerve is a branch of the maxillary division.
its target organs are:
nasal septum and gingiva or maxillary incisors

Front 9

greater palatine nerve is a branch of what division? what are its target organs

Back 9

greater palatine nerve is a branch of maxillary division.
its target organs are:
hard palate and gingiva of adjacent teeth

Front 10

lesser palatine nerve is a branch of what division? what are its target organs

Back 10

lesser palatine nerve is a branch of the maxillary division.
its target organs are:
soft palate and uvula

Front 11

zygomatic nerve is a branch of what division. what are its target organs

Back 11

zygomatic nerve is a branch of the maxillary division
its target organs are:
skin over the cheek and protions of the temporal region

Front 12

what are the branches of the mandibular nerve

Back 12

Mandibular nerve branches: (ALLI)
Auriculotemporal nerve
long buccal nerve
lingual nerve
inferior alveolar nerve

Front 13

auriculotemporal nerve is from what branch?
is it sensory or motor?
what are its target organs

Back 13

from the mandibular branch
sensory
ear, temporal skin, parotid gland, TMJ

Front 14

long buccal nerve is from what branch?
is it sensory or motor?
what are its target organs?

Back 14

mandibular branch
sensory
skin of cheek wall, buccal mucosa, gingiva of mand molars

Front 15

lingual nerve is from what branch?
sensory or motor
target organs

Back 15

mandibular branch
sensory
anterior 2/3rds tongue, mucosa of floor of mouth, lingual mandibular gingiva, submandibular and sublingual glands

Front 16

inferior alveolar nerve is from what branch
what are the inferior alveolar nerves sub branches

Back 16

from mandibular branch
sub branches are: (IMM)
incisive nerve
mental nerve
mylohyoid muscle nerve

Front 17

incisive nerve branches from what mandibular branch
sensory or motor
target organs

Back 17

branches from inferior alveolar nerve
sensory
mandibular incisors

Front 18

mental nerve branches from what mandibular branch
sensory or motor
target organs

Back 18

inferior alveolar
sensory
mucosa and skin of lower lip and chin

Front 19

nerve to mylohyoid muscle branches from what V3 branch
sensory or motor
target organs

Back 19

inferoior alveolar
motor
mylohyoid and anterior belly of digastric muscles

Front 20

what provides motor innervation to muscles of mastication

Back 20

anterior division of mandibular branch V3

Front 21

Where are the nerve cell bodies of the MOTOR NEURONS located

Back 21

motor nucleus of V

Front 22

What do first order neurons carry?
Where are their cell bodies located?

Back 22

1st order neurons carry general sensation
(touch, pain , temp)
located in TRIGEMINAL GANGLION

Front 23

where do the proprioceptive fibers originate

Back 23

mesencephalic nucleus of V

Front 24

Why is mesencephalic nucleus of V considered a "misplaced" dorsal root ganglion

Back 24

only nucleus in CNS thast has 1st order AFFERENT neurons

Front 25

The divisions of the trigeminal nerve go through the ______ ganglion before entering the ______

Back 25

trigeminal; pons

Front 26

What travels alongside the mandibular deivision

Back 26

motor root of V

Front 27

What are the 4 parasympathetic ganglia? They contain nerve cell bodies of _______ neurons?
Which one is associated with what division

Back 27

Ciliary- opthalmic
Pterygopalatine- maxillary
Otic and Submandibular- mandibular
contain nerve cell bodies of postganglionic neurons

Front 28

where does the opthalmic nerve enter?

Back 28

superior orbital fissure

Front 29

the supraorbital nerve is a sub branch of the _____ nerve.
what does it pass through to reach outer surface of the skull?
What does it supply?

Back 29

frontal nerve
supraorbital foramen
supplies:
skin of upper lid
forehead
anterior scalp
mucous membrane of frontal sinus

Front 30

what does the supratrochlear branch supply.
where does it branch from

Back 30

supplies:
skin of upper eyelid and skin of lower and medial part of forehead
branches from the frontal nerve, of the opthalmic division

Front 31

what branch does the ciliary ganglion communicate with?
what type of fibers does it contain?

Back 31

long root (sensory root) of the nasociliary branch
afferent

Front 32

what type of neurons does the ciliary ganglion contain

Back 32

postganglionic parasympathetic

Front 33

where do the preganglionic fibers of the nasociliary/opthalmic nerve come from

Back 33

oculomotor nerve

Front 34

the long root nerve fibers pass through the ganglion (with or without) synapse and exit the short ciliary nerves to supply the ___,_____,____

Back 34

without
ciliary body, iris, cornea

Front 35

the short ciliary nerves also contain postganglionic (efferent or afferent) nerve fibers that supply _____,_____
as well as postganglionic sympathetic fibers from the ______ ganglion to what muscle

Back 35

efferent
shincter pupillae and ciliary muscles (cause rounding shape of lens)
superior cervical ganglion
dilator pupillae muscle

Front 36

where do the long ciliary nerves enter?

Back 36

they peirce the posterior surface of the sclera to supply AFFERENT fibers to iris and cornea

instead of entering through ciliary ganglion

Front 37

what does infratrochlear nerve of the nasocilliary branch supply

Back 37

afferent fibers to skin of medial parts of eyelids, side of nose

Front 38

anterior and posterior ethmoidal nerves of the nasocilliary branch provide afferent fibers to ___

Back 38

frontal, sphenoidal,ethmoidal sinuses

Front 39

external nasal branches of the anterior ethmoidal supply

Back 39

skin on surface of the nose

Front 40

do you hate the trigeminal nerve too?

Back 40

yes.

Front 41

where does the maxillary division leave the cranial cavity
where does it enter

Back 41

the foramen rotundum
the pterygopalatine fossa

Front 42

where do the small branches of maxillary nerve start
what do they connect with

Back 42

small branches of maxillary nerve start in the pteryogpalatine fossa
connect with the pterygopalatine ganglion

Front 43

what does the pterygopalatine ganglion cause to secrete
is it (pre or post)ganglionic, (para)or sympathetic

Back 43

lacrimal glands (tears)
nasal cavity, palate, nasopharynx, paranasal sinuses
postganglionic, parasympathetic

Front 44

pregranglionic fibers of the maxillary division are derived from where

Back 44

facial nerve, cn VII

Front 45

how does the maxillary nerve reach the orbit
when does it become the infraorbital nerve
where does it terminate

Back 45

leaves pterygopalatine fossa laterally through pterygomaxillary fissure
travels along roof of infratemporal fossa
reaches orbit through inferior orbital fissure

travels through inferior orbital goorve on floor of orbit it becomes infraorbital nerve

terminates on surface of face by exiting through infraorbital foramen

Front 46

what doe the maxillary terminal cutaneous branches supply

Back 46

skin of lower eyelid, cheek, upper lip

Front 47

what are the branches of the maxillary nerve

Back 47

branches of maxillary nerve (PINGZ)
PSA
infraorbital
nasopalatine
greater palatine
lesser palatine
zygomatic

Front 48

where do the pterygopalatine bracnhes form?
where do they go?
synapse?
what does the pterygopalatine ganglion contain?

Back 48

forms in pterygopalatine fossa
passes through pterygopalatine ganglion without synapse
branches are afferent
ganglion contain postganglionic parasympathetic neurons

Front 49

where does the greater palatine nerve terminate
what does it supply

Back 49

incisive foramen
supplies mucosa of hard palate

Front 50

what does lesser palatine supply

Back 50

supplies mucosa of the soft palate

Front 51

nasopalatine supplies what

Back 51

nasal septum and gingiva of max incisors

Front 52

zygomatic carries two types of fibers. what are they

Back 52

postganglionic fibers from pterygopalatine ganglion (supply lacrimal gland)
afferent fibers that supply skin over zygomatic arch and temporal region (zygomatico-facial and zygomaticotemporal)

Front 53

where does the PSA enter
where does it enter the bone

Back 53

infraorbital fissure
posterior superior alveolar foramina

Front 54

what does psa supply

Back 54

maxillary molar teeth except mesiobuccal root of the first molar, surrounding gingiva

Front 55

what does the ASA supply
what is it a branch of

Back 55

incisors canines and surround gingiva, also maxillary sinus
infraorbital nerve

Front 56

waht does msa supply
what is it a branch of

Back 56

maxillary premolars and mesiobuccal root of first molar.
infraorbital nerve

Front 57

what does the infraorbital nerve terminate
what does that supply

Back 57

small cutaneous branches
supplyl external nose, lower eyelid and upper lip

Front 58

why is the mandibular division special

Back 58

it contains motor fibers to muscles of mastication

Front 59

mandibular division has 2 parasympathetic ganglia, ___ and _____

Back 59

otic and submandibular ganglions

Front 60

where does the mandibular nerve exit the cranial cavity

Back 60

foramen ovale

Front 61

where does the mandibular nerve receive its postganglion parasympathetic fibers from

Back 61

otic ganglion, just outside the foramen
otic ganglion lies next to the nerve

Front 62

mandibular nerve preganglionic fibers come from where

Back 62

glossopharyngeal nerve CN IX

Front 63

where do postganglionic fibers travel to
how do they get there
what does that cause

Back 63

travel to parotid gland
by auriculotemporal nerve
cause secretion of parotid gland

Front 64

what does auriculotemporal nerva supply

Back 64

general sensation to skin over parotid gland and temporal region, more importantly TMJ

Front 65

upon exitin skull, auriculotemp divides into anterior and posterior divisions. anterior is mainly (motor or sensory) and supplies what

Back 65

motor
supplies muscles of mastication (temporalise pterygoids masseter) mylohyoid, anterior belly digastric, tensor veli paltini

Front 66

where does the long buccal nerve arise from
what does it supply

Back 66

anterior division
sensory skin of cheek wall and buccal mucosa

Front 67

posterior division of auriculotemp divides into ___ and ___

Back 67

lingual and inferior alveolar nerves

Front 68

what does the lingual nerve innervate
what fiber types are there

Back 68

anterior 2/3rds of ongue
3 fiber types
general sensory
special sensation (taste)
preganglionic parasympathetic fibers

Front 69

where are the taste and preganglionic fibers of the tongue derived from and how do they get there

Back 69

facial nerve
chorda tympani nerve

Front 70

where are fibers for general sensation of tongue from

Back 70

trigeminal nerve

Front 71

where do preganglionic fibers of the tongue synapse

Back 71

submandibular ganglion thats attached to the lingual nerve

Front 72

what do the postganglionic efferent fibers of the tongue do

Back 72

leave the ganglino to supply the submandibular and sublingual salivary glands

Front 73

what does the mylohyoid muscle nerve supply and what does it branch from

Back 73

supplies
motor fibers supply mylohyoid muscle and anterior belly of digastric

Front 74

incisive nerve branches from where and supplies what

Back 74

inferior alveolar nerve of mandibular branch
supplies sensory to mandibular incisors

Front 75

inferior alveolar give off dental branches which supply what

Back 75

mand molar and premolar teeth and adjacent gingiva

Front 76

mental nerve supplies what

Back 76

skin of chin and lip, mucosa of lower lip