Cranial Nerves

Question 1

CN2

Answer 1

Optic

Question 2

Foramen vagus?

Answer 2

Jugular foramen

Question 4

CN9

Answer 4

Glossopharyngeal

Question 6

CN4

Answer 6

Trochlear

Question 7

Foramen occulomotor?

Answer 7

Superior orbital fissure

Question 10

Foramen olfactory?

Answer 10

Cribiform plate

Question 11

CN5

Answer 11

Trigeminal

Question 12

Foramen optic nerve?

Answer 12

Optic canal

Question 13

CN1

Answer 13

Olfactory

Question 14

Foramen trochlear

Answer 14

Superior orbital fissure

Question 15

CN6

Answer 15

Abducens

Question 17

foramen Hypoglossal nerve?

Answer 17

Hypoglossal canal

Question 18

CN7

Answer 18

Facial

Question 19

CN8

Answer 19

Vestibuloccochlear

Question 20

Foramen trigeminal?

Answer 20

V1 superior orbital fissure
V2 foramen rotundum
V3foramen ovale

Question 21

Foramen abducens?

Answer 21

Superior orbital fissure

Question 22

Foramen facial?

Answer 22

Internal acoustic meatus

Question 23

Foramen vestibulocochlear?

Answer 23

Internal acoustic meatus

Question 24

Foramen glossopharyngeal

Answer 24

Jugular foramen

Question 25

Foramen spinal accessory?

Answer 25

Jugular foramen

Question 26

CN10

Answer 26

Vagus

Question 27

CN11

Answer 27

Spinal accessory

Question 28

CN12

Answer 28

Hypoglossal

Question 44

CN3

Answer 44

Oculomotor

Question 45

The solitary nucleus in the brainstem contains synapses from which cranial nerve(s)

Answer 45

Facial
Glossopharyngeal
Vagus

Question 46

The superior and inferior salivatory nuclei in the brainstem contain synapses from which cranial nerve(s)

Answer 46

Glossopharyngeal

Facial

Question 47

The nucleus ambiguus in the brainstem contains synapses from which cranial nerve(s)

Answer 47

Glossopharyngeal

Vagus

Question 48

What are some of the functions of the facial nerve?

Answer 48

Motor to muscles of facial expression
Stapedius (in ear)
Parasympathetic to pterygopalatine and submandibular ganglia
Taste to anterior 2/3 of tongue

Question 49

What are some of the innervations of the glossopharyngeal nerve?

Answer 49

Taste to posterior 1/3 of the tongue
Tactile info of sensation, pain and temperature from posterior tongue
Parasympathetic to otic ganglion (parotid)
Motor to stylopharyngeus

Question 50

What are some of the innervations of the vagus nerve?

Answer 50

Tactile sensation, pain and temperature of the pharynx, larynx, trachea, oesophagus, thoracic and abdo viscera

Taste epilottis
Parasym to ganglia serving thoracic and abdo viscera
Motor to striated muscle of pharnx and larynx

Question 51

If someone has damaged their facial nerve, what may then complain of?

Answer 51

Bad taste in mouth (anterior 2/3 taste), poor hearing/off (stapedius muscle), dry eyes (lacrimal gland), bells palsy

Question 52

If someone has damaged their vestibulococchlear nerve, what may then complain of?

Answer 52

poor hearing in one of their ears
Rinne’s conductive hearing loss
Webber’s sensorineural hearing loss

Question 53

If someone has damaged their vagus nerve what would you ask them to do to check?

Answer 53

Ask patient to say ahhhhhh and the uvula will point away from the affected side

Question 54

How would you test for a damaged spinal accessory nerve?

Answer 54

Ask to turn and flex neck
Ask to shrug shoulders

Look for assymetry and power

Question 55

How would you examine for a damaged hypoglossal nerve?

Answer 55

Ask patient to stick tongue straight out

If moves to a side then that side it points to is effected