04.1 The Cranial Nerves

Question 1

What is CNI?

Answer 1

Olfactory

Question 2

What is CNII?

Answer 2

Optic

Question 3

What is CNIII?

Answer 3

Oculomotor

Question 4

What us CNIV?

Answer 4

Trochlear

Question 5

What is CNV?

Answer 5

Trigeminal

Question 6

What is CNVI?

Answer 6

Abducens

Question 7

What is CNVII?

Answer 7

Facial

Question 8

What is CNVIII?

Answer 8

Vestibulocochlear (Acoustic)

Question 9

What is CNIX?

Answer 9

Glossopharyngeal

Question 10

What is CNX?

Answer 10

Vagus

Question 11

What is CNXI?

Answer 11

Spinal Accessory

Question 12

What is CNXII?

Answer 12

Hypoglossal

Question 13

What is the olfactory nerve responsible for?

Answer 13

Sense of smell

Question 14

Where do the olfactory receptor neurons travel through to form the olfactory bulb?

Answer 14

Cribriform plate

Question 15

What can cause anosmia?

Answer 15

Trauma
Meningitis
URTI

Question 16

What is the optic nerve responsible for?

Answer 16

Sight

Question 17

What is the course of neurons from the retina?

Answer 17

Via the optic tract to the optic canal to the occipital lobe

Question 18

The optic and olfactory nerves aren’t true nerves, what are they described as?

Answer 18

Brain tracts

Question 19

What is the oculomotor nerve responsible for?

Answer 19

Move the eyeball, eyelid and constricts the pupils

Question 20

What is the trochlear nerve responsible for?

Answer 20

The eye looking downwards and inwards

Question 21

What is the trigeminal nerve responsible for?

Answer 21

Facial sensation

Muscles of mastication

Question 22

What is CNV1 and what does it travel through?

Answer 22

Opthalmic nerve

Superior orbital fissure

Question 23

What is CNV2 and what does it travel through?

Answer 23

Maxillary nerve

Foramen rotundum

Question 24

What is CNV3 and what does it travel through?

Answer 24

Foramen ovale

Question 25

What nerves do you block when working on the teeth?

Answer 25

Superior/inferior alveolar nerves

Question 26

What is the abducens nerve responsible for?

Answer 26

Lateral eye movement

Question 27

What is the facial nerve responsible for?

Answer 27

Taste
Facial movements
Salivation + Lacrimation

Question 28

What are the motor branches of the facial nerve called?

Answer 28

Temporal
Zygomatic
Buccal
Mandibular
Cervical

Question 29

What is the vestibulocochlear nerve responsible for?

Answer 29

Hearing

Balance

Question 30

What does the vestibulocochlear nerve travel through?

Answer 30

Internal acoustic meatus

Question 31

What is the glossopharyngeal nerve repsonsible for?

Answer 31

Sensation of the oropharynx, posterior 1/3 of tongue, carotid sinus and body
Motor function of the stylopharyngus muscle
Parasympathetic innervation of the parotid gland

Question 32

What is the vagus nerve responsible for?

Answer 32

Sensation of the laryngopharynx and ear
Motor function of the larynx and pharynx muscles
Parasympathetic innervation of heart, lungs and GI

Question 33

What is the spinal accessory nerve responsible for?

Answer 33

Sternocleidomastoid

Trapezius

Question 34

What is the hypoglossal nerve responsible for?

Answer 34

Extrinsic and intrinsic tongue movements

Question 35

Which nerves come from the midbrain?

Answer 35

CNIII, CNIV

Question 36

Which nerves come from the pons?

Answer 36

CNV-CNVIII

Question 37

Which nerves come from the medulla oblongata?

Answer 37

CNIX-CNXII