Y2B2 Omm- Cranial Nerve Entrapments

Front 1

where is the olfactory nerve located?

Back 1

rests on the cribiform plate of the ethmoid bone.

Front 2

what is the course of the optic nerve? accompanied by what?

Back 2

through optic canal of sphenoid bone accompanied by the ophthalmic artery

Front 3

what are the clinical disorders associated with the optic nerve? what age group are you able to see this in?

Back 3

blindness and diplopia. I newborns

Front 4

what is the osteopathic cranial field application for the optic nerve?

Back 4

optic foramen between two roots of the lesser wings of the sphenoid--> the optic chiasm lies above the SBS and between the layers of the tent

Front 5

what are the five eye muscles associated with the oculomotor nerve?

Back 5

superior, inferior, medial rectus; inferior oblique and levator palpebrae superioris

Front 6

where does the oculomotor nerve run?

Back 6

over the attached border of the tentorium, through lateral wall of the cavernous sinus and superior orbital fissure.

Front 7

what are the clinical disorders associated with the oculomotor nerve?

Back 7

ptosis, diplopia, dilated pupil

Front 8

what nerve controls the superior oblique muscle?

Back 8

CN 4--> trochlear

Front 9

what does the trochlear pierce?

Back 9

pierces the free border of the tentorium then follows CN III

Front 10

what are the clinical disorders associated with cranial nerve 4?

Back 10

diplopia

Front 11

what nerve controls the lateral rectus?

Back 11

cranial nerve 6--> abducens

Front 12

where does the abducens nerve run?

Back 12

beneath petrosphenoid ligament beside dorsum sellae, in lumen of cavernous sinus, then with CN III

Front 13

what are the associated clinical disorders with abducens?

Back 13

diplopia (eye can't abduct). seen in head trauma

Front 14

what happens to the tentorium cerebelli when the sphenoid has a torsion?

Back 14

the tentorium is tightened and nerves 3, 4, 5, and 6 are affected because they run under the tentorium as well as deter the venous drainage which can leave to glaucoma (if of the cavernous sinus).

Front 15

how can strabismus be acquired?

Back 15

congenital
acquired through CN paralysis
neuromuscular disorders

Front 16

how is strabismus often compensated by the patient?

Back 16

through postural changes.

Front 17

T/F

Strabismus can be effectively addressed through OCF.

Back 17

true

Front 18

what muscles are innervated by trigeminal nerve?

Back 18

muscles of the mastrication + muscles from 1st arch (tensor veli palatine, tensor tympani, mylohyoid, anterior belly of the digestric)

Front 19

what areas of the body are given sensory through the trigeminal nerve?

Back 19

face, scalp, structures above tentorium cerebelli

Front 20

which division of the trigeminal nerve crosses through the superior orbital fissure?

Back 20

V1

Front 21

which division of the trigeminal nerve crosses through the Foramen rotundum?

Back 21

V2 (maxillary)

Front 22

which division of the trigeminal nerve crosses through the Foramen ovale?

Back 22

V3 (mandibular)

Front 23

what is another name for trigeminal neuralgia? what does it feel like?

Back 23

Tic doloreux
severe stabbing sharp pain along the V2 and/ or V3 divisions of CN V

Front 24

why to pts get trigeminal neuralgia?

Back 24

d/t dural restriction over the petrous ridge

Front 25

what muscles are supplied by the facial nerve?

Back 25

facial expression, scalp, aurcile, buccinator, platysma, stapedius, stylohyoid, post. belly of digastric

Front 26

where does the facial nerve provide taste to?

Back 26

anterior 2/3 of tongue

Front 27

what glands are innervated by the facial nerve?

Back 27

submandibular, sublingual, intralingual glands

Front 28

How does the facial nerve affect hearing?

Back 28

innervating stapes

Front 29

what is the course of the facial nerve?

Back 29

sweeps over abducens nerve→ joins CN VIII in internal acoustic meatus, → facial canal → stylomastoid foramen → posteroaricular foramen→ parotid gland, muscles of facial expression

Front 30

what is belly's palsy?

Back 30

complete paralysis of muscles of facial expression

Front 31

if only the low face is affected via facial nerve, what would it be called?

Back 31

stroke

Front 32

if a pregnant women can in with bell's palsy, what could it be d/t?

Back 32

swelling

Front 33

how do you know that you are in the right position for txing sinusitis via the sphenopalatine ganglia?

Back 33

the pt starts tearing.

Front 34

what is the course of the vestibulochoclear nerve?

Back 34

through the internal acoustic meatures--> petrous portion of the temporal bone

Front 35

what is the vestibulochoclear nerve responsible for?

Back 35

hearing, balance and eye position

Front 36

what dysfunctions are associated with the vestibulochoclear nerve?

Back 36

vertigo, loss of hearing, nausea, motion sickness

Front 37

what is the muscle associated with tennis serving that can affect the temporal bone?

Back 37

SCM

Front 38

what is the glossopharyngeal nerve sensory to? what does it supply taste to?

Back 38

oropharynx; posterior 1/3 of tongue

Front 39

what is the glossopharyngeal nerve motor to?

Back 39

stylopharyneus

Front 40

where does the glossopharyngeal exit the skull? what does it mediate

Back 40

exits--> jugular foramen; mediates baroreceptors in carotid artery

Front 41

where does the vagus exit?

Back 41

skull at the jugular foramen

Front 42

what does vagus nerve supply sensory to?

Back 42

dura of posterior cranial fossa

Front 43

what dysfunctions associated with the vagus nerve?

Back 43

posterior headaches, bradyarrythmia, cough, accentuated gag reflex, vomiting, shallow respiration

Front 44

what nerve would you tx for visceral dysfunction?

Back 44

vagus nerve

Front 45

what joint would you tx in order to affect the vagal nerve?

Back 45

OA

Front 46

where does the accessory nerve exit?

Back 46

jugular formane

Front 47

what does the accessory nerve apply motor to?

Back 47

trapezius, SCM and some pharyngeal

Front 48

what are the dysfunctions associated with accessory nerve?

Back 48

weakness in shoulder elevation, torticollis

Front 49

What would you expect in a child who had a very difficult delivery and hyoid bone that was affected when turning?

Back 49

affected hypoglossal nerve-> suckling dysfunction

Front 50

what type of spitting up would you expect of a pt with suckling dysfunction?

Back 50

excessive spitting up, almost to the point of throwing up

Front 51

how do you tx a suckling dysfunction?

Back 51

OA release

Front 52

what are the dysfunctions associated with hypoglossal nerve?

Back 52

tongue deviation, suckling dysfunction

Front 53

what contents are found in jugular foramen?

Back 53

cn 9, 10, 11, inferior petrosal and transverse isnuses, meningeal vessels