Head And Neck

Question 0

Optic Canal

Answer 0

CN II, Ophthalmic Artery

Question 1

Foramina in cribriform plate of ethmoid

Answer 1

CN I

Question 2

Superior Orbital Fissure

Answer 2

CN III, IV, VI, Ophthalmic nerve (V) and vein

Question 3

Foramen rotundum

Answer 3

Maxillary Nerve (V)

Question 4

Foramen Ovale

Answer 4

Mandibular Nerve (V)

Question 5

Jugular Foramen

Answer 5

CN IX, X, XI

Question 6

Hypoglossal canal

Answer 6

CN XII

Question 7

Internal Avoustic Meatus

Answer 7

CN VII, VIII

Question 8

Foramen Magnum

Answer 8

Medulla and meninges, CN XI spinal roots

Question 9

Lesion to CN I

Answer 9

Anosmia

Question 10

Lesion to CN II

Answer 10

Blindness, loss of direct pupillary reflex

Question 11

Deafness, loss of balance, absence of vestibulocochlear reflexes

Answer 11

CN VIII

Question 12

Diplopia, PTOSIS, dilated pupil, fixed l

Answer 12

CN III

Question 13

Diplopia - extorsion of the eye, weakness of downward gaze

Answer 13

CN IV

Question 14

Diplopia - medial deviation,abductor paralysis(?)

Answer 14

CN VI

Question 15

Facial hemianesthesia, paralysis of muscles of mastication, deviation of jaw to weak side, loss of general sensation of tongue - anterior 2/3

Answer 15

CN V

Question 16

Bell’s palsy,facial paralysis, loss of corneal/ blink reflex,hyperacusis,dry mouth,loss of lacrimation, loss of TASTE - anterior 2/3 pf tongue

Answer 16

CN VII

Question 17

Dysphagia, lossof taste and common sensation of tongue posteriorly, loss of gag reflex, hemianesthesia of pharynx and larynx

Answer 17

CN X

Question 18

Weakness in turning head toward opposite side and shrugging shoulder

Answer 18

CN XI

Question 19

Hemiparalysis of tongue, deviation towards the weak side

Answer 19

CN XII

Question 20

Mastication

Answer 20

CN V

Question 21

CN for facial expression

Answer 21

CN VII facial nerve

Question 22

CN for degluttition

Answer 22

CN IX Glossopharyngeal

Question 23

CN for phonation

Answer 23

CN X Vagus

Question 24

Innervation of the eye

Answer 24

CN III except Superior rectus CN IV and Lateral Rectus CN VI

Question 25

Structures that may be affected in cavernous sinus thrombosis

Answer 25

CN III, IV, VI, ophthalmic and maxillary divisions of CN V, Internal carotid artery

Question 26

Nerve supply of muscles of tongue

Answer 26

CN XII except palatoglossus (CN X)

Question 27

Mucous membrane of tongue

Answer 27

Anterior 2/3 by CN V, Posterior 1/3 by CN IX

Question 28

Tste buds of tongue

Answer 28

Anterior 2/3 by CN VII, Posterior 1/3 by CN IX