CN VII, IX, X, XII

Question 1

CN VII GSA

Nucleus and main function

Answer 1

spinal trigeminal nucleus

sensory from external ear

Question 2

CN VII SA

Nucleus and main function

Answer 2

Nucleus solitarius

taste anterior 2/3 of tongue and palate

Question 3

CN VII GVA

Nucleus and main function

Answer 3

Nucleus solitarius

sensory info from nasal, lacrimal, palatine, pharyngeal, sublingual and submandibular glands

Question 4

CN VII SVE

Nucleus and main function

Answer 4

facial motor nucleus

motor to muscles of facial expression

Question 5

CN VII GVE

Nucleus and main function

Answer 5

superior salvitory nucleus

PNS to nasal, lacrimal, palatine, pharyngeal, sublingual, submandibular glands

Question 6

CN IX GSA

Nucleus and main function

Answer 6

spinal trigeminal nucleus

sensory from external ear

Question 7

CN IX SA

Nucleus and main function

Answer 7

nucleus solitarius

taste posterior 1/3 of tongue

Question 8

CN IX GVA

Nucleus and main function

Answer 8

Nucleus solitarius

posterior 1/3 tongue, palatine tonsil, pharynx, carotid body, carotid sinus

Question 9

CN IX SVE

Nucleus and main function

Answer 9

nucleus ambiguus

motor to stylopharyngeus (only muscle of CN IX)

Question 10

CN IX GVE

Nucleus and main function

Answer 10

inferior salvitory nucleus

PNS to parotid gland

Question 11

CN X GSA

Nucleus and main function

Answer 11

spinal trigeminal nucleus

external ear

Question 12

CN X SA

Nucleus and main function

Answer 12

nucleus solitarius

taste epilottis

Question 13

CN X GVA

Nucleus and main function

Answer 13

nucleus solitarius

sensory from larynx, trachea, esophagus, thoracic and abdominal viscera

Question 14

CN X SVE

Nucleus and main function

Answer 14

nucleus ambiguus

motor to muscles of soft palate, pharynx, larynx, and upper esophagus

Question 15

CN X GVE

Nucleus and main function

Answer 15

dorsal motor nucleus X
PNS to thoracic and abdominal organs
most widely distributed PNS nerve

Question 16

CN VII

Name

Answer 16

Facial

Question 17

CN IX

Name

Answer 17

glossopharyngeal

Question 18

CN X

name

Answer 18

vagus

Question 19

Superior salvitory nucleus

location, nerves, ganglions

Answer 19

in pons
GVE from CN VII (facial) to pterygopalatine ganglion (lacrimal, nasal palatine and upper pharynx glands) and to submandibular ganglion (sublingual and submandibular glands)

Question 20

Genticulate ganglion

Answer 20

contains cell bodies of GSA and SA from CN VII (facial)

Question 21

Gustatory nucleus

Answer 21

rostral solitary nucleus (where SA from CN VII (facial) synapse)

Question 22

Where do CN IX and X leave brainstem, reside in skull and where do they exit?

Answer 22

IX from anterior medulla
X from medulla
In posterior cranial fossa
Exit via jugular foramen

Question 23

Inferior salvitory nucleus

location, nerves

Answer 23

in medulla

GVE from CN IX

Question 24

solitary nucleus

location, nerves

Answer 24

in pons/medulla
SA and GVA from CN VII
SA and GVA from CN IX
SA and GVA from CN X

Question 25

nucleus ambiguus | location, nerves/input

Answer 25

in medulla SVE from CN IX SVE from CN X (bilateral but mostly contralateral corticobulbar input)

Question 26

Spinal trigeminal nucleus | location, nerves

Answer 26

Extends through midbrain, pons, medulla and into cervical spinal cord GSA from CN VII GSA from CN IX GSA from CN X

Question 27

Glossopharyngeal ganglion

Answer 27

superior: GSA from CN IX inferior: SA and GVA from CN IX

Question 28

otic ganglion

Answer 28

GVE from CN IX

Question 29

dorsal motor nucleus of CN X | location, nerves

Answer 29

medulla | GVE from CN X

Question 30

vagal ganglion

Answer 30

superior: GSA from CN X inferior: SA and GVA from CN X

Question 31

where does CN XII leave brainstem, location in skull and where it exits

Answer 31

from front of medulla in posterior cranial fossa exit via hypoglossal canal

Question 32

CN XII name

Answer 32

hypoglossal

Question 33

CN XII GSE | Nucleus and main function

Answer 33

hypoglassal nucleus | motor to muscles of tongue

Question 34

hypoglossal nucleus | location, nerves/input

Answer 34

in rostal medulla GSE from CN XII bilateral but mostly contralateral input

Question 35

Hypoglossal nerve

Answer 35

intrinsic tongue muscle 3-4 extrinsic tongue muscles ADDucts tongue

Question 36

adduct vs abduct

Answer 36

adduct: towards midline abduct: away from midline

Question 37

UMN lesion vs LMN lesion to hypoglosseal nerve (impact on tongue movement)

Answer 37

UMN: tongue deviates contralateral to lesion LMN: tongue deviates ipsilateral to lesion

Question 38

list CN I-XII

Answer 38

olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal Oh Once One Takes The Anatomy Final Very Good Vacations Are Heavenly

Question 39

Where does CN VII emerge from brainstem, leave cranial cavity, leave skull?

Answer 39

Leaves brainstem between pons and medulla to temporal bone Exits internal cranial cavity via auditory meatus exits skull via stylomastoid foramen