Cranial nerves & MT1

Question 1

What is cranial nerve I?

Answer 1

Olfactory

Question 2

What is cranial nerve II?

Answer 2

Optic

Question 3

What is cranial nerve III?

Answer 3

Occulomotor

Question 4

What is cranial nerve IV?

Answer 4

Trochlear

Question 5

What is cranial nerve V?

Answer 5

Trigeminal

Question 6

What is cranial nerve VI?

Answer 6

Abducens

Question 7

What is cranial nerve VII?

Answer 7

Facial

Question 8

What is cranial nerve VIIII?

Answer 8

Vestibulocochlear

Question 9

What is cranial nerve IX?

Answer 9

Glossopharyngeal

Question 10

What is cranial nerve X?

Answer 10

Vagus

Question 11

What is cranial nerve XI?

Answer 11

Spinal accessory

Question 12

What is cranial nerve XII?

Answer 12

Hypoglosseal

Question 13

What is the entry/exit & function for cranial nerve I?

Answer 13

Sensory
Enter: cribriform plate
Function: Smell

Question 14

What is the entry/exit & function for cranial nerve II?

Answer 14

Sensory
Enter: Optic canal
Function: vision

Question 15

What is the entry/exit & function for cranial nerve III?

Answer 15

Motor - visceral efferent
Exit: Superior orbital fissure
Function: Innervate muscles in eye

Question 16

What muscles does the oculomotor nerve innervate?

Answer 16

Levator palpebrae
Superior/inferior/medial rectus
Inferior oblique
Sphincter pupillae & cilliary

Question 17

What is the entry/exit & function for cranial nerve IV?

Answer 17

Motor
Exit: superior orbital fissure
Function: Innervate superior oblique muscle

Question 18

/What is the entry/exit & function for cranial nerve Vi (ophthalmic)

Answer 18

Sensory
Enter: superior orbital fissure
Function: sensory from face, nasal, orbital structures

Question 19

What are the divisions of the trigeminal nerve?

Answer 19

Ophthalmic - lacrimal, frontal, maxillary
Maxillary
Mandibular - lingual, inferior alveolar, buccal

Question 20

What is the entry/exit & function for cranial nerve Vii (maxillary)?

Answer 20

Sensory
Enter: Foramen rotundum
Function: sensory from dura, nasal, lower eyelid, upper cheek, lip, teeth

Question 21

What is the entry/exit & function for cranial nerve Viii (mandibular)?

Answer 21

Sensory & motor
Enter: foramen ovale
Function: motor to muscles of mastication. Sensory from lower face, cheek, lip, teeth, ear

Question 22

What is the entry/exit & function for cranial nerve VI?

Answer 22

Motor
Exit: superior orbital fissure
Innervates lateral rectus muscle

Question 23

What is the entry/exit & function for cranial nerve VII?

Answer 23

Motor - muscles of facial expression
Exits: internal acoustic meatus & stylomastoid foramen
Function: muscles of facial expression. Special efferent - taste, anterior 2/3 of tongue. Visceral efferent - submandibular/sublingual glands

Question 24

What are the divisions of the facial nerve?

Answer 24

Temporal
Zygomatic
Buccal
Mandibular
Cerbical
Nerve to posterior belly of digastric & stylomyoid
Chorda tympani

Question 25

What is the entry/exit & function for cranial nerve VIII?

Answer 25

Sensory Enter: internet acoustic meatus Function: special afferent. Vestibular - balance, cochlear - hearing

Question 26

What is the entry/exit & function for cranial nerve IX?

Answer 26

Sensory & motor Exit: jugular foramen Function: Special afferent - taste Sensory afferent - posterior 1/3 tongue, upper pharynx, palatine tonsil Visceral efferent - parotid gland Somatic efferent - motor, stylopharyngeus

Question 27

What is the entry/exit & function for cranial nerve X?

Answer 27

Sensory & motor Exit: jugular foramen Function: Sensory afferent - external acoustic meatus Visceral afferent - aortic receptors, numerous mucous membranes Visceral efferent - smooth muscle, glands of pharynx, thorax, abdomen Somatic efferent - muscles of soft palate, pharynx, larynx, carries CN XI fibres

Question 28

What is the entry/exit & function for cranial nerve XI?

Answer 28

Motor Exit: foramen magnum & jugular foramen Function: somatic efferent - motor - pharyngeal muscles

Question 29

What is the entry/exit & function for cranial nerve XII?

Answer 29

Motor Exit: hypoglossal canal Function: somatic efferent - innervates extrinsic & intrinsic tongue muscles

Question 30

What passes through the cribriform plate?

Answer 30

Cranial nerve I (olfactory)

Question 31

What passes through the optic canal

Answer 31

Cranial nerve II (optic)

Question 32

What passes through the superior orbital fissure?

Answer 32

Cranial nerve III (oculomotor) Cranial nerve IV (trochlear) Cranial nerve Vi (ophthalmic) Cranial nerve VI (abducens)

Question 33

What passes through the foramen rotundum?

Answer 33

Cranial nerve Vii (maxillary)

Question 34

What passes through the foramen ovale?

Answer 34

Cranial nerve Viii (mandibular)

Question 35

What passes through the foramen spinosum?

Answer 35

Middle meningeal artery

Question 36

What passes through the foramen lacerum?

Answer 36

Internal carotid artery

Question 37

What passes through the Internal acoustic meatus?

Answer 37

Cranial nerve VII (facial) | Cranial nerve VIII (vestibulocochlear)

Question 38

What passes through the jugular foramen?

Answer 38

Cranial nerve IX (glossopharyngeal) Cranial nerve X (vagus) Cranial nerve XI (accessory) Internal jugular vein

Question 39

What passes through the hypoglossal canal?

Answer 39

Cranial nerve XII (hypoglossal)

Question 40

What passes through the carotid canal?

Answer 40

Internal carotid artery

Question 41

What passes through the stylomastoid foramen

Answer 41

Cranial nerve VII

Question 42

What passes through the foramen magnum?

Answer 42

Medulla Spinal cord Cranial nerve XI (accessory) Vertebral arteries

Question 43

What are the skull sutures?

Answer 43

``` Coronal Bregma Sagittal Lambdoid Lamda ```

Question 44

What are the developmental skull sutures?

Answer 44

Anterior Posterior Mastoid Sphenoid (anterior lateral)