Cranial Nerves

Question 1

What is the foremen for CN1

Answer 1

Cribiform plate

Question 2

What is the name and function of CN1

Answer 2

Olfactory nerve - sense of smell

Question 3

How do you test CN1

Answer 3

Ask patient about their sense of smell

Use different outdoors e.g mint to test smell

Question 4

What is the foramen for CN2

Answer 4

Optic foramen

Question 5

What is the name and function of CN2

Answer 5

Optic nerve

Responsible for sight

Question 6

How would you test CN2

Answer 6

Snellen wall chart (visual acuity)

Visual fields test

Pupillary reflexes

Question 7

What is the foramen for CN3

Answer 7

Super orbital tissue

Question 8

What is the name and function of CN3

Answer 8

Oculomotor nerve

Supplies all extraocular muscles except superior oblique and lateral recurs

Parasympathetic pupillary reflex

Elevation of upper eyelid

Question 9

How would you test CN3

Answer 9

H test

Light pupillary reflex

Question 10

What is the foramen or fissure for CN4

Answer 10

Superior orbital fissure

Question 11

What is the name and function of CN4

Answer 11

Trochlea nerve

Innervates the superior oblique (looking down)

Question 12

How would you test CN4

Answer 12

The H test

Question 13

what is the foramen or fissure for CN5

Answer 13

Superior orbital fissure, foramen rotundum, foramen ovale

Question 14

what is the name and function of CN5

Answer 14

Trigeminal nerve

opthalamic - sensory to scalp, forehead, nose and upper eyelid

maxilary - sensory to palate, upper jaw, upper teeth, lower eyelid and nasal cavity

mandibular -sensory to lower lip, lower teeth anterior third of tongue, lateral cheek, temporal region - motor to muscles of mastication, digastic, mylohyoid and middle ear

Question 15

how would you test CN5

Answer 15

sharp and soft sensory test, mastication test - jaw reflex

Question 16

what is the Foramen for C6

Answer 16

superior orbital fissure

Question 17

what is the name and function of CN6

Answer 17

Abducens nerve

innervates the lateral rectus

Question 18

what is the test for CN6

Answer 18

H test

Question 19

what is the foramen or fissure for CN7

Answer 19

Internal auditory meatus and stylomastoid foramen

Question 20

what is the name and function of CN7

Answer 20

Facial nerve

Sensory - taste for anterior 2/3 of the tongue, and part of the ear

motor to muscles of facial expression

parasympathetic innervation of salivary glands

Question 21

what is the foramen or fissure of CN8

Answer 21

Internal auditory meatus

Question 22

What is the name and function of CN8

Answer 22

vestibulocochlear nerve

sense of hearing
sense of balance

Question 23

how to test CN8

Answer 23

ask patient about hearing

webers test

rinne’s test

Question 24

what is the foramen or fissure of CN9 and 10

Answer 24

Jugular foramen

Question 25

what are the names and functions of CN9 and 10

Answer 25

glossopharyngeal and vagus nerve sensory back third of the tongue motor to pharyngal and laryngeal muscles parasympathetic to parotid salivary gland and thoracic abdominal viscera

Question 26

how do you test CN9 and CN10

Answer 26

ask patient to cough listen for a hoarse voice swallowing test, test for uvula deviation loss of gag reflex and blood pressure

Question 27

what is the foramen or fissure for CN11

Answer 27

Foramen magnum and jugular foramen

Question 28

what is the name and function of CN11

Answer 28

Accessory nerve Motor to Pharynx, trapezius and SCM

Question 29

How do you test for CN11

Answer 29

Scm and trapezius test

Question 30

what is the foramen or fissure for CN12

Answer 30

hypoglossal canal

Question 31

what is the name and function of CN12

Answer 31

Hypoglossal nerve Motor to tongue and throat

Question 32

what is the test for CN12

Answer 32

tongue movement and protrusion test

Question 33

Acronym to remember Motor or sensory

Answer 33

tbd

Question 34

acronym to remember cranial nerves

Answer 34

Oh Oh Oh to touch and feel a girls vagina ah heaven