Cranial nerves

Question 1

Where does the olfactory nerve exit from skull?

Answer 1

Cribriform plate of ethmoid bone

Question 2

What is the function of the olfactory nerve?

Answer 2

S: Smell

Question 3

Where does the optic nerve exit from skull?

Answer 3

Optic foramen of sphenoid bone

Question 4

What is the function of the optic nerve?

Answer 4

S: Vision

Question 5

Where does the occulomotor nerve exit from skull?

Answer 5

supraorbital fissure of sphenoid bone

Question 6

What is the function of the occulomotor nerve?

Answer 6

S/M: eye muscles

Question 7

Where does the trochlear nerve exit from skull?

Answer 7

supraorbital fissure of sphenoid bone

Question 8

What is the function of the trochlear nerve?

Answer 8

S/M: superior oblique muscle

Question 9

Where does the ophtalmic nerve (V1) exit from skull?

Answer 9

supraorbital fissure of sphenoid bone

Question 10

Where does the maxillary nerve (V2) exit from skull?

Answer 10

foramen rotundum of sphenoid bone

Question 11

Where does the mandibular nerve (V3) exit from skull?

Answer 11

foramen ovale of sphenoid bone

Question 12

What is the function of the trigeminal nerves?

Answer 12

S: facial, mouth, teeth, nasal cavity
M: mastication muscles

Question 13

Where does the abducens nerve exit from skull?

Answer 13

supraorbital fissure of sphenoid bone

Question 14

What is the function of the abducens nerve?

Answer 14

S/M: lateral rectus muscle

Question 15

Where does the facial nerve exit from skull?

Answer 15

enters in internal acoustic meatus and exits stylomastoid foramen of temporal bone

Question 16

What is the function of the facial nerve?

Answer 16

S: tongue (taste)
M: facial expression muscle, salivary glands

Question 17

Where does the vestibulocochlear nerve exit from skull? What are the bones involved?

Answer 17

It does not exit from skull (internal acoustic meatus).

Temporal bone and petrous part

Question 18

What is the function of the vestibulocochlear nerve?

Answer 18

S: hearing and balance

Question 19

Where does the glossopharyngeal nerve exit from skull?

Answer 19

jugular foramen of petrous, temporal and occipital bones

Question 20

What is the function of the glossopharyngeal nerve?

Answer 20

S: tongue (taste), pharynx
M: stylopharyngeal muscle

Question 21

Where does the vagus nerve exit from skull?

Answer 21

jugular foramen of petrous, temporal and occipital bones

Question 22

What is the function of the vagus nerve?

Answer 22

S: thoracic and abdominal viscera
M: pharynx, larynx

Question 23

Where does the accessory nerve exit from skull?

Answer 23

jugular foramen of petrous, temporal and occipital bones

Question 24

What is the function of the accessory nerve?

Answer 24

M: trapezius and sternocleidomastoid muscles

Question 25

Where does the hypoglossal nerve exit from skull?

Answer 25

hypoglossal canal of occipital bone

Question 26

What is the function of the hypoglossal canal?

Answer 26

M: tongue muscles

Question 27

What nerve has the ethmoid bone involved?

Answer 27

olfactory nerve

Question 28

What nerves have the sphenoid bone involved?

Answer 28

optic, occulomotor, trochlear, trigeminal, abducens nerves

Question 29

What nerves exit from the jugular foramen?

Answer 29

glossopharyngeal, vagus and accessory nerves

Question 30

What nerve has smell as a sensory function?

Answer 30

olfactory nerve

Question 31

What nerve has vision as a sensory function?

Answer 31

optic nerve

Question 32

What nerve has eye muscles as sensory and motor functions?

Answer 32

occulomotor nerve

Question 33

What nerve has superior oblique muscle as sensory and motor functions?

Answer 33

trochlear nerve

Question 34

What nerve has face, teeth, mouth, nasal cavity as sensory function and mastication muscles as motor function?

Answer 34

trigeminal nerve

Question 35

What nerve has lateral rectus muscle as sensory and motor function?

Answer 35

abducens nerve

Question 36

What nerve has tongue as sensory function and facial expression muscles, salivary glands as motor function?

Answer 36

facial nerve

Question 37

What nerve has hearing and balance as sensory function?

Answer 37

vestibulocochlear nerve

Question 38

What nerve has tongue and pharynx as sensory function and stylopharyngeal muscle as motor function?

Answer 38

glossopharyngeal nerve

Question 39

What nerve has thoracic and abdominal viscera as sensory function and larynx & pharynx as motor nerve?

Answer 39

vagus nerve

Question 40

What nerve has trapezius and sternocleidomastoid muscles as motor function?

Answer 40

accessory nerve

Question 41

What nerve has tongue muscles as motor function?

Answer 41

hypoglossal nerve

Question 42

Name all 12 cranial nerves and number.

Answer 42

olfactory (I), optic (II), occulomotor (III), trochlear (IV), trigeminal (opthalmic-V1, maxillary-V2, mandibular-V3), abducens (VI), facial (VII), vestibulocochlear (VIII), glossopharyngeal (IX), vagus (X), accessory (XI), hypoglossal (XII)