Cranial Nerves

Question 1

Smell

Answer 1

Olfactory nerve [I]

Question 2

Vision

Answer 2

Optic nerve [II]

Question 3

GSE-innervates levator palpebrae superioris, superior rectus, inferior rectus, medial rectus, and inferior oblique muscles

Answer 3

Oculomotor nerve [III]

Question 4

GVE-innervates sphincter pupillae for pupillary constriction; ciliary muscles for accommodation of the lens for near vision

Answer 4

Oculomotor nerve [III]

Question 5

Innervates superior oblique muscle

Answer 5

Trochlear nerve [IV]

Question 6

GSA-sensory from: ophthalmic division [V,]-eyes, conjunctiva, orbital contents, nasal cavity, frontal sinus, ethmoidal cells, upper eyelid, dorsum of nose, anterior part of scalp, dura in anterior cranial fossa, superior part of tentorium cerebelli; maxillary nerve [V,]-dura in middle cranial fossa, nasopharynx, palate, nasal cavity, upper teeth, maxillary sinus, skin covering the side of the nose, lower eyelid, cheek, upper lip; mandibular division (V3)-skin of lower face, cheek, lower lip, anterior part of external ear, part of external acoustic meatus, temporal fossa, anterior two-thirds of tongue, lower teeth, mastoid air cells, mucous membranes of cheek, mandible, dura in middle cranial fossa

Answer 6

Trigeminal nerve [V]

Question 7

BE-innervates temporalis, masseter, medial and lateral pterygoids, tensor tympani, tensor veli palatini, anterior belly of digastric, and mylohyoid muscles

Answer 7

Trigeminal nerve [V]

Question 8

Innervates lateral rectus muscle

Answer 8

Abducent nerve [VI]

Question 9

GSA-sensory from part of external acoustic meatus and deeper parts of auricle

Answer 9

Facial nerve [VII]

Question 10

SA-taste from anterior two-thirds of tongue

Answer 10

Facial nerve [VII]

Question 11

GVE-innervates lacrimal gland, submandibular and sublingual salivary glands, and mucous membranes of nasal cavity, hard and soft palates

Answer 11

Facial nerve [VII]

Question 12

BE-innervates muscles of face (muscles of facial expression) and scalp derived from the second pharyngeal arch, and stapedius, posterior belly of digastric, stylohyoid muscles

Answer 12

Facial nerve [VII]

Question 13

Vestibular division-balance

Answer 13

Vestibulocochlear
nerve [VIII]

Question 14

Cochlear division-hearing

Answer 14

Vestibulocochlear
nerve [VIII]

Question 15

GVA-sensory from carotid body and sinus

Answer 15

Glossopharyngeal
nerve [IX]

Question 16

GSA-posterior one-third of tongue, palatine tonsils, oropharynx, and mucosa of middle ear, pharyngotympanic tube, and mastoid air cells

Answer 16

Glossopharyngeal
nerve [IX]

Question 17

SA-taste from posterior one-third of tongue

Answer 17

Glossopharyngeal
nerve [IX]

Question 18

GVE— innervates parotid salivary gland

Answer 18

Glossopharyngeal
nerve [IX]

Question 19

BE-innervates stylopharyngeus muscle

Answer 19

Glossopharyngeal
nerve [IX]

Question 20

GSA-sensory from larynx, laryngopharynx, deeper parts of auricle, part of external acoustic meatus, and dura in posterior cranial fossa

Answer 20

Vagus nerve [X]

Question 21

GVA-sensory from aortic body chemoreceptors and aortic arch baroreceptors, esophagus, bronchi, lungs, heart, and abdominal viscera of the foregut and midgut

Answer 21

Vagus nerve [X]

Question 22

SA-taste from the epiglottis and pharynx

Answer 22

Vagus nerve [X]

Question 23

GVE-innervates smooth muscle and glands in the pharynx, larynx, thoracic viscera, and abdominal viscera of the foregut and midgut

Answer 23

Vagus nerve [X]

Question 24

BE-innervates one tongue muscle (palatoglossus), muscles of soft palate (except tensor veli palatini), pharynx (except stylopharyngeus), and larynx

Answer 24

Vagus nerve [X]

Question 25

Innervates sternocleidomastoid and trapezius muscles

Answer 25

Accessory nerve [XI]

Question 26

Innervates hyoglossus, genioglossus, and styloglossus muscles and all intrinsic muscles of the tongue

Answer 26

Hypoglossal nerve [XII]