Cranial Nerves & Skull Foramina

Question 1

Cranial nerve I

Answer 1

Olfactory nerve

Question 2

Cranial nerve II

Answer 2

Optic nerve

Question 3

Cranial nerve III

Answer 3

Oculomotor nerve

Question 4

Cranial nerve IV

Answer 4

Trochlear nerve

Question 5

Cranial nerve V

Answer 5

Trigeminal nerve

Question 6

Cranial nerve V1

Answer 6

Trigeminal - Opthalamic nerve

Question 7

Cranial nerve V2

Answer 7

Trigeminal - Maxillary nerve

Question 8

Cranial nerve V3

Answer 8

Trigeminal - Mandibular nerve

Question 9

Cranial nerve VI

Answer 9

Abducens nerve

Question 10

Cranial nerve VII

Answer 10

Facial nerve

Question 11

Cranial nerve VIII

Answer 11

Vestibulocochlear nerve

Question 12

Cranial nerve IX

Answer 12

Glossopharyngeal nerve

Question 13

Cranial nerve X

Answer 13

Vagus nerve

Question 14

Cranial nerve XI

Answer 14

Spinal Accessory nerve

Question 15

Cranial nerve XII

Answer 15

Hypoglossal nerve

Question 16

What skull foramen does the CN I (Olfactory) exit?

Answer 16

Cribiform plate

Question 17

What skull foramen does the CN II (Optic) exit?

Answer 17

Optic canal

Question 18

What skull foramen does the CN III (Oculomotor) exit?

Answer 18

Superior orbital fissure

Question 19

What skull foramen does the CN IV (Trochlear) exit?

Answer 19

Superior orbital fissure

Question 20

What skull foramen does the CN V1 (Trigeminal - Opthalamic) exit?

Answer 20

Superior orbital fissure

Question 21

What skull foramen does the CN V2 (Trigeminal - Maxillary) exit?

Answer 21

Foramen rotundum

Question 22

What skull foramen does the CN V3 (Trigeminal - Mandibular) exit?

Answer 22

Foramen ovale

Question 23

What skull foramen does the CN VI (Abducens) exit?

Answer 23

Superior orbital fissure

Question 24

What skull foramen does the CN VII (Facial) exit?

Answer 24

Internal acoustic meatus

Question 25

What skull foramen does the CN VIII (Vestibulocochlear) exit?

Answer 25

Internal acoustic meatus

Question 26

What skull foramen does the CN IX (Glossopharyngeal) exit?

Answer 26

Jugular foramen

Question 27

What skull foramen does the CN X (Vagus) exit?

Answer 27

Jugular foramen

Question 28

What skull foramen does the CN XI (Spinal Accessory) exit?

Answer 28

Jugular foramen

Question 29

What skull foramen does the CN XII (Hypoglossal) exit?

Answer 29

Hypoglossal canal

Question 30

CN I general function?

Answer 30

Sensory

Question 31

CN II general function?

Answer 31

Sensory

Question 32

CN III general function?

Answer 32

Motor

Question 33

CN IV general function?

Answer 33

Motor

Question 34

CN V general function?

Answer 34

Both

Question 35

CN VI general function?

Answer 35

Motor

Question 36

CN VII general function?

Answer 36

Both

Question 37

CN VIII general function?

Answer 37

Sensory

Question 38

CN IX general function?

Answer 38

Both

Question 39

CN X general function?

Answer 39

Both

Question 40

CN XI general function?

Answer 40

Motor

Question 41

CN XII general function?

Answer 41

Motor

Question 42

Specific function of CN I

Answer 42

Smell

Question 43

Specific function of CN II

Answer 43

Vision

Question 44

Specific function of CN III

Answer 44

Motor function of 4 intrinsic eye muscles - superior rectus, inferior rectus, medial rectus, inferior oblique Motor of lens and iris

Question 45

Specific function of CN IV

Answer 45

Motor function of 1 intrinsic eye muscle - Superior oblique

Question 46

Specific function of CN V1

Answer 46

Sensation to anterior scalp, forehead, upper eyelids

Question 47

Specific function of CN V2

Answer 47

Sensation to upper teeth, gums, lips; palate; skin of upper jaw

Question 48

Specific function of CN V3

Answer 48

Sensation to lower teeth, gums, lips; superior scalp, mandibular skin Motor function to muscles of mastication - temporalis, masseter, pterygoids, sublingual muscles

Question 49

Specific function of CN VI

Answer 49

Motor function to 1 intrinsic eye muscle - lateral rectus

Question 50

Specific function of CN VII

Answer 50

Sensation of taste from anterior 2/3 of tongue Motor function to muscles of facial expression - frontalis; occipitalis; zygomaticus major and minor; orbicularis oculi and oris; buccinator; platysma

Question 51

Specific function of CN VIII

Answer 51

Hearing from cochlea Balance from semicircular canals and vestibule

Question 52

Specific function of CN IX

Answer 52

Taste from posterior 1/3 of tongue; sensation from oropharyngeal area Motor function to muscles of pharynx

Question 53

Specific function of CN X

Answer 53

Sensation from pharynx/larynx/esophagus Motor function to muscles of speech and swallowing 90% of parasympathetic preganglionic nerves

Question 54

Specific function of CN XI

Answer 54

Motor function to sternocleidomastoid and trapezius

Question 55

Specific function of CN XII

Answer 55

Motor function to muscles of tongue

Question 56

What passes through the cribiform plate?

Answer 56

CN I

Question 57

What passes through the optic canal?

Answer 57

CN II

Question 58

What passes through the superior orbital fissure?

Answer 58

CN III, IV, V1, and VI

Question 59

What passes through the foramen rotundum?

Answer 59

CN V2

Question 60

What passes through the foramen ovale?

Answer 60

CN V3

Question 61

What passes through the internal acoustic meatus?

Answer 61

CN VII and VIII

Question 62

What passes through the foramen spinosum?

Answer 62

Middle meningeal artery

Question 63

What passes through the foramen lacerum?

Answer 63

Internal carotid artery

Question 64

What passes through the carotid canal?

Answer 64

Internal carotid artery

Question 65

What passes through the jugular foramen?

Answer 65

CN IX, X, XI and internal jugular vein

Question 66

What passes through the hypoglossal canal?

Answer 66

CN XII

Question 67

What passes through the foramen magnum?

Answer 67

Medulla, spinal cord, vertebral arteries, and the spinal roots of CN XI