Ch 15 Cranial Nerves

Question 1

CN I=

Answer 1

Olfactory

Question 2

CN II=

Answer 2

Optic

Question 3

CN III=

Answer 3

Oculomotor

Question 4

CN IV

Answer 4

Trochlear

Question 5

CN V

Answer 5

Trigeminal

Question 6

CN VI

Answer 6

Abducent AKA Abcucens

Question 7

CNVII

Answer 7

Facial

Question 8

CN VIII

Answer 8

Vestibulocochlear

Question 9

CN IX

Answer 9

Glossopharyngeal

Question 10

CN X

Answer 10

Vagus

Question 11

CN XI

Answer 11

Accessory

Question 12

CN XII

Answer 12

Hypoglossal

Question 13

Cranial Nerves that are ONLY sensory (3)

Answer 13

1,2,8
-CN I olfactory
-CN II optic
-CN VIII Vestibulocochlear

Question 14

Cranial Nerves that are ONLY motor (5)

Answer 14

3,4,6,11,12
-CN III Oculomotor
-CN IV Trochlear
-CN VI Abducens/ Abducents
-CN XI Accessory
-CN XII Hypoglossal

Question 15

Cranial Nerves that are BOTH sensory and motor(4):

Answer 15

5, 7, 9, 10
-CN V Trigeminal
-CN VII Facial
-CN IX Glossopharyngeal
-CN X Vagus

Question 16

Function of CNI=

Answer 16

smell

Question 17

Function of CNII=

Answer 17

vision

Question 18

Function of CNIII=

Answer 18

intrinsic and extrinsic eye movement

Question 19

Functions of CN IV=

Answer 19

Extrinsic eye movement

Question 20

Functions of CN V=

Answer 20

-5ensation in head
-mu5cle5 of ma5tication

Question 21

Functions of CN VI=

Answer 21

Extrinsic Eye Movement - abducts eyeball

Question 22

Functions of CN VII=

Answer 22

muscles of facial expression and taste

Question 23

Functions of CN VIII=

Answer 23

hearing and equilibrium

Question 24

Functions of CN IX=

Answer 24

taste and muscles of pharynx

Question 25

Functions of CN X=

Answer 25

-parasympathetic to major viscera
-larynX and pharynX muscles

Question 26

Functions of CN XI=

Answer 26

innervates trapezius and sternocleidomastoid muscles

Question 27

Functions of CNXII=

Answer 27

tongue muscles

Question 28

Cranial Exit of CN I=

Answer 28

Foramen of the Cribriform plate

Question 29

Cranial Exit of CN II=

Answer 29

optic canal

Question 30

Cranial Exit of CN III=

Answer 30

superior orbital fissure

Question 31

Cranial Exit of CN IV=

Answer 31

superior orbital fissure

Question 32

Cranial Exit of CN V (3 exits)=

Answer 32

V1 ophthalmic- superior orbital fissure
V2 maxillary - foramen rotundum
V3 mandibular - foramen ovale

Question 33

Cranial Exit of CN VI=

Answer 33

superior orbital fissure

Question 34

Cranial Exit of CN VII=

Answer 34

internal acoustic meatus

Question 35

Cranial Exit of CN VIII=

Answer 35

internal acoustic meatus

Question 36

Cranial Exit of CN IX=

Answer 36

jugular foramen

Question 37

Cranial Exit of CN X=

Answer 37

jugular foramen

Question 38

Cranial Exit of CN XI=

Answer 38

jugular foramen

Question 39

Cranial Exit of CN XII=

Answer 39

hypoglossal canal

Question 40

Which CN share cranial exit of Superior Orbital Fissure?

Answer 40

CN:
3- oculomotor
4- trochlear
5 (1) [ophthalmic] trigeminal
6 Abducens / Abductens

Question 41

Which CN share cranial exit of Internal Acoustic Meatus?

Answer 41

CN:
7- facial
8- vestibulocochlear

Question 42

Which CN share cranial exit of Jugular Foramen

Answer 42

CN:
9-glossopharyngeal
10-vagus
11-accessory

Question 43

Mnemonics for types of CN (sensory, motor or both):

Answer 43

SSMMBMBSBBMM
some say marry money but my brother says big brains matter more

Question 44

Mnemonics for CN names:

Answer 44

OOOTTAFVGVAH
oh oh oh, to touch a fresh volatile gas, very apparently happy :)

Question 45

True or false: the CN III, IV, V(a), and VI all exit through the superior optic foramen.

Answer 45

FALSE!!!
Superior OBITAL FISSURE, not optic foramen!!!!