Week 2 - Cranial Nerves

Question 1

Where does CN I open into base of skull?

Answer 1

Cribriform plate in ethmoid bone

Question 2

Where does CN II open into base of skull?

Answer 2

Optic canal

Question 3

Where does CN III open into base of skull?

Answer 3

Superior orbital fissure

Question 4

Where does CN IV open into base of skull?

Answer 4

Superior orbital fissure

Question 5

Where does CN V1 open into base of skull?

Answer 5

Superior orbital fissure

Question 6

Where does CN V2 open into base of skull?

Answer 6

Foramen rotundum

Question 7

Where does CN V3 open into base of skull?

Answer 7

Foramen ovale

Question 8

Where does CN VI open into base of skull?

Answer 8

Superior orbital fissure

Question 9

Where does CN VII open into base of skull?

Answer 9

Internal acoustic meatus

Question 10

Where does CN VIII open into base of skull?

Answer 10

Internal acoustic meatus

Question 11

Where does CN IX open into base of skull?

Answer 11

Jugular foramen

Question 12

Where does CN X open into base of skull?

Answer 12

Jugular foramen

Question 13

Where does CN XI open into base of skull?

Answer 13

Jugular foramen

Question 14

Where does CN XII open into base of skull?

Answer 14

Hypoglossal canal

Question 15

What is 1?

Answer 15

Olfactory

Question 16

What is 5?

Answer 16

Trigeminal

Question 17

What is 4?

Answer 17

Trochlear

Question 18

What is 3?

Answer 18

Oculomotor

Question 19

What is 2?

Answer 19

Optic

Question 20

What is 7?

Answer 20

Facial

Question 21

What is 8?

Answer 21

Vestibulocochlear

Question 22

What is 6?

Answer 22

Abducent

Question 23

What is 12?

Answer 23

Hypoglossal

Question 24

What is 10?

Answer 24

Vagus

Question 25

What is 9?

Answer 25

Glossopharyngeal

Question 26

What is 11?

Answer 26

Accessory

Question 27

What type of fibres are present in cranial nerve I?

Answer 27

Special sensory

Question 28

What type of fibres are present in cranial nerve II?

Answer 28

Sensory

Question 29

What is the pathway of the optic nerve?

Answer 29

Optic nerve, optic chiasma, optic tract, lateral geniculate nucleus (LGN) and optic radiation

Question 30

What type of fibres are present in cranial nerve III?

Answer 30

Motor and parasympathetic

Question 31

What type of fibres are present in cranial nerve IV?

Answer 31

Motor

Question 32

What type of fibres are present in cranial nerve VI?

Answer 32

Motor

Question 33

What type of fibres are present in cranial nerve V?

Answer 33

Ophthalmic - sensory Maxillary - sensory Mandibular - sensory and motor

Question 34

What type of fibres are present in cranial nerve VII?

Answer 34

Sensory, motor and parasympathetic

Question 35

What type of fibres are present in cranial nerve VIII?

Answer 35

Sensory

Question 36

What type of fibres are present in cranial nerve IX?

Answer 36

Motor, sensory and parasympathetic

Question 37

What type of fibres are present in cranial nerve X?

Answer 37

Sensory, motor and parasympathetic

Question 38

What plexus does cranial nerve X form?

Answer 38

Oesophageal plexus

Question 39

What 2 branches of cranial nerve X innervate the muscles of the pharynx?

Answer 39

Mainly recurrent laryngeal nerve But cricothyroid muscles by external laryngeal nerve

Question 40

What is 2 branches of mandibular nerve that supply jaw?

Answer 40

Inferior alveolar nerve Lingual nerve - above IAN

Question 41

What type of fibres are present in cranial nerve XI?

Answer 41

Motor

Question 42

What type of fibres are present in cranial nerve XII?

Answer 42

Motor

Question 43

What nerves have a parasympathetic component?

Answer 43

III, VII, IX and X

Question 44

What cranial nerves are attached directly to brain?

Answer 44

Olfactory and optic

Question 45

What cranial nerves are attached to midbrain?

Answer 45

Oculomotor and trochlear

Question 46

What is the only cranial nerve to leave posterior aspect of brain?

Answer 46

Trochlear

Question 47

Which cranial nerve is attached to pons?

Answer 47

Trigeminal

Question 48

What cranial nerves leave the pontomedullary junction?

Answer 48

Abducent, facial and vestibulocochlear

Question 49

What cranial nerves are attached to medulla?

Answer 49

Glossopharyngeal, vagus, accessory and hypoglossal

Question 50

What cranial nerve can be tested in pupillary light relflex?

Answer 50

Oculomotor

Question 51

Which nerve can be tested by touch over surface of cheek?

Answer 51

Maxillary - trigeminal nerve

Question 52

What cranial nerve is tested when patient sticks out tongue?

Answer 52

Hypoglossal nerve